diff --git a/.chloggen/metricstarttime-skeleton.yaml b/.chloggen/metricstarttime-skeleton.yaml
new file mode 100644
index 000000000000..627a41d9c59f
--- /dev/null
+++ b/.chloggen/metricstarttime-skeleton.yaml
@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'new_component'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: metricstarttimeprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add the initial skeleton for the metricsstarttimeprocessor
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [37186]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: The component is still in development and is not ready for use.
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user, api]
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index f6428b5ee08e..eedfd3c2e676 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -182,6 +182,7 @@ processor/k8sattributesprocessor/                                @open-telemetry
 processor/logdedupprocessor/                                     @open-telemetry/collector-contrib-approvers @MikeGoldsmith @djaglowski
 processor/logstransformprocessor/                                @open-telemetry/collector-contrib-approvers @dehaansa
 processor/metricsgenerationprocessor/                            @open-telemetry/collector-contrib-approvers @Aneurysm9
+processor/metricstarttimeprocessor/                              @open-telemetry/collector-contrib-approvers @dashpole
 processor/metricstransformprocessor/                             @open-telemetry/collector-contrib-approvers @dmitryax
 processor/probabilisticsamplerprocessor/                         @open-telemetry/collector-contrib-approvers @jpkrohling @jmacd
 processor/redactionprocessor/                                    @open-telemetry/collector-contrib-approvers @dmitryax @mx-psi @TylerHelmuth
diff --git a/.github/ISSUE_TEMPLATE/bug_report.yaml b/.github/ISSUE_TEMPLATE/bug_report.yaml
index 95b022b70897..0c198fb6e272 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yaml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yaml
@@ -184,6 +184,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yaml b/.github/ISSUE_TEMPLATE/feature_request.yaml
index acf39e99429e..49330e636b37 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.yaml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yaml
@@ -178,6 +178,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction
diff --git a/.github/ISSUE_TEMPLATE/other.yaml b/.github/ISSUE_TEMPLATE/other.yaml
index a99efb30d46b..b97e7fca91a6 100644
--- a/.github/ISSUE_TEMPLATE/other.yaml
+++ b/.github/ISSUE_TEMPLATE/other.yaml
@@ -178,6 +178,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction
diff --git a/.github/ISSUE_TEMPLATE/unmaintained.yaml b/.github/ISSUE_TEMPLATE/unmaintained.yaml
index c7148dc20c9a..bcc1e2032c2d 100644
--- a/.github/ISSUE_TEMPLATE/unmaintained.yaml
+++ b/.github/ISSUE_TEMPLATE/unmaintained.yaml
@@ -183,6 +183,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction
diff --git a/processor/metricstarttimeprocessor/Makefile b/processor/metricstarttimeprocessor/Makefile
new file mode 100644
index 000000000000..ded7a36092dc
--- /dev/null
+++ b/processor/metricstarttimeprocessor/Makefile
@@ -0,0 +1 @@
+include ../../Makefile.Common
diff --git a/processor/metricstarttimeprocessor/README.md b/processor/metricstarttimeprocessor/README.md
new file mode 100644
index 000000000000..13884f8aa91c
--- /dev/null
+++ b/processor/metricstarttimeprocessor/README.md
@@ -0,0 +1,10 @@
+<!-- status autogenerated section -->
+| Status        |           |
+| ------------- |-----------|
+| Stability     | [development]: metrics   |
+| Distributions | [] |
+| Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aprocessor%2Fmetricstarttime%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aprocessor%2Fmetricstarttime) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aprocessor%2Fmetricstarttime%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aprocessor%2Fmetricstarttime) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@dashpole](https://www.github.com/dashpole) |
+
+[development]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#development
+<!-- end autogenerated section -->
diff --git a/processor/metricstarttimeprocessor/config.go b/processor/metricstarttimeprocessor/config.go
new file mode 100644
index 000000000000..046ce94b328b
--- /dev/null
+++ b/processor/metricstarttimeprocessor/config.go
@@ -0,0 +1,18 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+
+import (
+	"go.opentelemetry.io/collector/component"
+)
+
+// Config holds configuration of the metric start time processor.
+type Config struct{}
+
+var _ component.Config = (*Config)(nil)
+
+// Validate checks the configuration is valid
+func (cfg *Config) Validate() error {
+	return nil
+}
diff --git a/processor/metricstarttimeprocessor/doc.go b/processor/metricstarttimeprocessor/doc.go
new file mode 100644
index 000000000000..417461294ac3
--- /dev/null
+++ b/processor/metricstarttimeprocessor/doc.go
@@ -0,0 +1,7 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:generate mdatagen metadata.yaml
+
+// Package metricstarttimeprocessor sets the start time of cumulative metric points when the start time is unknown.
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
diff --git a/processor/metricstarttimeprocessor/factory.go b/processor/metricstarttimeprocessor/factory.go
new file mode 100644
index 000000000000..21e06550045e
--- /dev/null
+++ b/processor/metricstarttimeprocessor/factory.go
@@ -0,0 +1,37 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/consumer"
+	"go.opentelemetry.io/collector/processor"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor/internal/metadata"
+)
+
+// NewFactory creates a new metric start time processor factory.
+func NewFactory() processor.Factory {
+	return processor.NewFactory(
+		metadata.Type,
+		createDefaultConfig,
+		processor.WithMetrics(createMetricsProcessor, metadata.MetricsStability))
+}
+
+func createDefaultConfig() component.Config {
+	return &Config{}
+}
+
+// createMetricsProcessor creates a metrics processor based on provided config.
+func createMetricsProcessor(
+	ctx context.Context,
+	set processor.Settings,
+	cfg component.Config,
+	nextConsumer consumer.Metrics,
+) (processor.Metrics, error) {
+	rCfg := cfg.(*Config)
+	return newMetricStartTimeProcessor(ctx, set, nextConsumer, rCfg)
+}
diff --git a/processor/metricstarttimeprocessor/generated_component_test.go b/processor/metricstarttimeprocessor/generated_component_test.go
new file mode 100644
index 000000000000..0c6f56cd6cac
--- /dev/null
+++ b/processor/metricstarttimeprocessor/generated_component_test.go
@@ -0,0 +1,135 @@
+// Code generated by mdatagen. DO NOT EDIT.
+
+package metricstarttimeprocessor
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/component/componenttest"
+	"go.opentelemetry.io/collector/confmap/confmaptest"
+	"go.opentelemetry.io/collector/consumer/consumertest"
+	"go.opentelemetry.io/collector/pdata/pcommon"
+	"go.opentelemetry.io/collector/pdata/plog"
+	"go.opentelemetry.io/collector/pdata/pmetric"
+	"go.opentelemetry.io/collector/pdata/ptrace"
+	"go.opentelemetry.io/collector/processor"
+	"go.opentelemetry.io/collector/processor/processortest"
+)
+
+func TestComponentFactoryType(t *testing.T) {
+	require.Equal(t, "metricstarttime", NewFactory().Type().String())
+}
+
+func TestComponentConfigStruct(t *testing.T) {
+	require.NoError(t, componenttest.CheckConfigStruct(NewFactory().CreateDefaultConfig()))
+}
+
+func TestComponentLifecycle(t *testing.T) {
+	factory := NewFactory()
+
+	tests := []struct {
+		name     string
+		createFn func(ctx context.Context, set processor.Settings, cfg component.Config) (component.Component, error)
+	}{
+
+		{
+			name: "metrics",
+			createFn: func(ctx context.Context, set processor.Settings, cfg component.Config) (component.Component, error) {
+				return factory.CreateMetrics(ctx, set, cfg, consumertest.NewNop())
+			},
+		},
+	}
+
+	cm, err := confmaptest.LoadConf("metadata.yaml")
+	require.NoError(t, err)
+	cfg := factory.CreateDefaultConfig()
+	sub, err := cm.Sub("tests::config")
+	require.NoError(t, err)
+	require.NoError(t, sub.Unmarshal(&cfg))
+
+	for _, tt := range tests {
+		t.Run(tt.name+"-shutdown", func(t *testing.T) {
+			c, err := tt.createFn(context.Background(), processortest.NewNopSettings(), cfg)
+			require.NoError(t, err)
+			err = c.Shutdown(context.Background())
+			require.NoError(t, err)
+		})
+		t.Run(tt.name+"-lifecycle", func(t *testing.T) {
+			c, err := tt.createFn(context.Background(), processortest.NewNopSettings(), cfg)
+			require.NoError(t, err)
+			host := componenttest.NewNopHost()
+			err = c.Start(context.Background(), host)
+			require.NoError(t, err)
+			require.NotPanics(t, func() {
+				switch tt.name {
+				case "logs":
+					e, ok := c.(processor.Logs)
+					require.True(t, ok)
+					logs := generateLifecycleTestLogs()
+					if !e.Capabilities().MutatesData {
+						logs.MarkReadOnly()
+					}
+					err = e.ConsumeLogs(context.Background(), logs)
+				case "metrics":
+					e, ok := c.(processor.Metrics)
+					require.True(t, ok)
+					metrics := generateLifecycleTestMetrics()
+					if !e.Capabilities().MutatesData {
+						metrics.MarkReadOnly()
+					}
+					err = e.ConsumeMetrics(context.Background(), metrics)
+				case "traces":
+					e, ok := c.(processor.Traces)
+					require.True(t, ok)
+					traces := generateLifecycleTestTraces()
+					if !e.Capabilities().MutatesData {
+						traces.MarkReadOnly()
+					}
+					err = e.ConsumeTraces(context.Background(), traces)
+				}
+			})
+			require.NoError(t, err)
+			err = c.Shutdown(context.Background())
+			require.NoError(t, err)
+		})
+	}
+}
+
+func generateLifecycleTestLogs() plog.Logs {
+	logs := plog.NewLogs()
+	rl := logs.ResourceLogs().AppendEmpty()
+	rl.Resource().Attributes().PutStr("resource", "R1")
+	l := rl.ScopeLogs().AppendEmpty().LogRecords().AppendEmpty()
+	l.Body().SetStr("test log message")
+	l.SetTimestamp(pcommon.NewTimestampFromTime(time.Now()))
+	return logs
+}
+
+func generateLifecycleTestMetrics() pmetric.Metrics {
+	metrics := pmetric.NewMetrics()
+	rm := metrics.ResourceMetrics().AppendEmpty()
+	rm.Resource().Attributes().PutStr("resource", "R1")
+	m := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
+	m.SetName("test_metric")
+	dp := m.SetEmptyGauge().DataPoints().AppendEmpty()
+	dp.Attributes().PutStr("test_attr", "value_1")
+	dp.SetIntValue(123)
+	dp.SetTimestamp(pcommon.NewTimestampFromTime(time.Now()))
+	return metrics
+}
+
+func generateLifecycleTestTraces() ptrace.Traces {
+	traces := ptrace.NewTraces()
+	rs := traces.ResourceSpans().AppendEmpty()
+	rs.Resource().Attributes().PutStr("resource", "R1")
+	span := rs.ScopeSpans().AppendEmpty().Spans().AppendEmpty()
+	span.Attributes().PutStr("test_attr", "value_1")
+	span.SetName("test_span")
+	span.SetStartTimestamp(pcommon.NewTimestampFromTime(time.Now().Add(-1 * time.Second)))
+	span.SetEndTimestamp(pcommon.NewTimestampFromTime(time.Now()))
+	return traces
+}
diff --git a/processor/metricstarttimeprocessor/generated_package_test.go b/processor/metricstarttimeprocessor/generated_package_test.go
new file mode 100644
index 000000000000..fb302318208a
--- /dev/null
+++ b/processor/metricstarttimeprocessor/generated_package_test.go
@@ -0,0 +1,13 @@
+// Code generated by mdatagen. DO NOT EDIT.
+
+package metricstarttimeprocessor
+
+import (
+	"testing"
+
+	"go.uber.org/goleak"
+)
+
+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m)
+}
diff --git a/processor/metricstarttimeprocessor/go.mod b/processor/metricstarttimeprocessor/go.mod
new file mode 100644
index 000000000000..51e5139ecedf
--- /dev/null
+++ b/processor/metricstarttimeprocessor/go.mod
@@ -0,0 +1,56 @@
+module github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor
+
+go 1.22.0
+
+require (
+	github.com/stretchr/testify v1.10.0
+	go.opentelemetry.io/collector/component v0.118.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/component/componenttest v0.118.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/confmap v1.24.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/consumer v1.24.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/consumer/consumertest v0.118.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/pdata v1.24.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/processor v0.118.1-0.20250123125445-24f88da7b583
+	go.opentelemetry.io/collector/processor/processortest v0.118.1-0.20250123125445-24f88da7b583
+	go.uber.org/goleak v1.3.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/knadh/koanf/maps v0.1.1 // indirect
+	github.com/knadh/koanf/providers/confmap v0.1.0 // indirect
+	github.com/knadh/koanf/v2 v2.1.2 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/collector/component/componentstatus v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/config/configtelemetry v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/consumer/xconsumer v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/pdata/pprofile v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/pdata/testdata v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/pipeline v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/collector/processor/xprocessor v0.118.1-0.20250123125445-24f88da7b583 // indirect
+	go.opentelemetry.io/otel v1.34.0 // indirect
+	go.opentelemetry.io/otel/metric v1.34.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.34.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.34.0 // indirect
+	go.opentelemetry.io/otel/trace v1.34.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241015192408-796eee8c2d53 // indirect
+	google.golang.org/grpc v1.69.4 // indirect
+	google.golang.org/protobuf v1.36.3 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/processor/metricstarttimeprocessor/go.sum b/processor/metricstarttimeprocessor/go.sum
new file mode 100644
index 000000000000..a440a74fff38
--- /dev/null
+++ b/processor/metricstarttimeprocessor/go.sum
@@ -0,0 +1,142 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=
+github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
+github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
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diff --git a/processor/metricstarttimeprocessor/internal/metadata/generated_status.go b/processor/metricstarttimeprocessor/internal/metadata/generated_status.go
new file mode 100644
index 000000000000..0ebbd30e4450
--- /dev/null
+++ b/processor/metricstarttimeprocessor/internal/metadata/generated_status.go
@@ -0,0 +1,16 @@
+// Code generated by mdatagen. DO NOT EDIT.
+
+package metadata
+
+import (
+	"go.opentelemetry.io/collector/component"
+)
+
+var (
+	Type      = component.MustNewType("metricstarttime")
+	ScopeName = "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+)
+
+const (
+	MetricsStability = component.StabilityLevelDevelopment
+)
diff --git a/processor/metricstarttimeprocessor/metadata.yaml b/processor/metricstarttimeprocessor/metadata.yaml
new file mode 100644
index 000000000000..ed2f1b92276c
--- /dev/null
+++ b/processor/metricstarttimeprocessor/metadata.yaml
@@ -0,0 +1,12 @@
+type: metricstarttime
+
+status:
+  class: processor
+  stability:
+    development: [metrics]
+  distributions: []
+  codeowners:
+    active: [dashpole]
+
+tests:
+  config:
diff --git a/processor/metricstarttimeprocessor/processor.go b/processor/metricstarttimeprocessor/processor.go
new file mode 100644
index 000000000000..8238258b955c
--- /dev/null
+++ b/processor/metricstarttimeprocessor/processor.go
@@ -0,0 +1,37 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/collector/consumer"
+	"go.opentelemetry.io/collector/pdata/pmetric"
+	"go.opentelemetry.io/collector/processor"
+	"go.opentelemetry.io/collector/processor/processorhelper"
+)
+
+type metricStartTimeProcessor struct {
+	settings processor.Settings
+	config   *Config
+}
+
+func newMetricStartTimeProcessor(ctx context.Context, set processor.Settings, nextConsumer consumer.Metrics, cfg *Config) (processor.Metrics, error) {
+	msp := &metricStartTimeProcessor{
+		settings: set,
+		config:   cfg,
+	}
+	return processorhelper.NewMetrics(
+		ctx,
+		set,
+		cfg,
+		nextConsumer,
+		msp.processMetrics,
+		processorhelper.WithCapabilities(consumer.Capabilities{MutatesData: true}))
+}
+
+func (msp *metricStartTimeProcessor) processMetrics(_ context.Context, metricData pmetric.Metrics) (pmetric.Metrics, error) {
+	// TODO: implement
+	return metricData, nil
+}
diff --git a/versions.yaml b/versions.yaml
index 2f15b1d7eb99..efcf483ba333 100644
--- a/versions.yaml
+++ b/versions.yaml
@@ -181,6 +181,7 @@ module-sets:
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/logdedupprocessor
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/logstransformprocessor
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricsgenerationprocessor
+      - github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstransformprocessor
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor
       - github.com/open-telemetry/opentelemetry-collector-contrib/processor/redactionprocessor