It may be better to enforce a normative requirement that the versionTime require a UTC offset

[daidoji]

From the spec we have the two normative requirements:

2. The value of versionTime MUST be a timestamp of the entry in ISO8601 format, as asserted by the DID Controller. The timestamp MUST be the time the DID will be retrieved by a witness or resolver, or before.

In order to prevent ambiguity or state conditions between funny time differentials in witnesses and resolvers and controllers that may exist in different time zones, it may be a good idea to not only follow ISO8601 but to require enforcement of mandatory offsets mentioned in the 8601 spec or that all actors resolve the diddoc in UTC.

[swcurran]

Added to the 0.4 PR currently in process. Thanks — good guidance.

[brianorwhatever]

Completed in #108