tm_timestamp Function

tm_timestamp returns a UTC timestamp string in RFC 3339 format.

In the Terraform language, timestamps are conventionally represented as strings using RFC 3339 "Date and Time format" syntax, and so tm_timestamp returns a string in this format.

The result of this function will change every second, so using this function directly with resource attributes will cause a diff to be detected on every Terraform run. We do not recommend using this function in resource attributes, but in rare cases it can be used in conjunction with the ignore_changes lifecycle meta-argument to take the timestamp only on initial creation of the resource. For more stable time handling, see the Time Provider.

Due to the constantly changing return value, the result of this function cannot be predicted during Terraform's planning phase, and so the timestamp will be taken only once the plan is being applied.

Examples

tm_timestamp()
2018-05-13T07:44:12Z

Related Functions

• tm_formatdate converts the resulting timestamp to other date and time formats.
• tm_timecmp compares two timestamps and returns a number that represents the ordering of the instants those timestamps represent.
• tm_timeadd adds a duration to a timestamp, returning a new timestamp.