Update displayDate to use local time format preferences (#4826) #12586

Job	Run time
build_ee	12m 46s
build	12m 46s
build_ee_312	0s
build_slim	0s
build_full	0s
attach_amd64_binary_to_release	0s
build_ee_full	0s
build_ee_cuda	0s
build_ee_nsjail	2m 17s
build_ee_slim	0s
run_integration_test	3m 16s
publish_ecr_s3	1m 58s
build_ee_reports_privately	1m 38s
tag_latest_ee	22s
tag_latest	24s
verify_ee_image_vulnerabilities	0s
	35m 27s

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