Time Runs locally
Unix Timestamp ↔ DateTime converter
Convert Unix timestamps in seconds or milliseconds to UTC ISO dates, or convert ISO DateTime back to Unix seconds.
Unix TimestampDateTime
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Conversion directions
Direction 01
Unix Timestamp to DateTime
Detect Unix seconds or milliseconds and display an ISO 8601 UTC date.
Direction 02
DateTime to Unix Timestamp
Convert an ISO 8601 date and time into Unix seconds.
Frequently asked questions
Does the timestamp converter accept milliseconds?
Yes. Large numeric values are automatically interpreted as milliseconds; shorter values are treated as seconds.
Which timezone is shown?
Timestamp results use UTC and the ISO 8601 format ending in Z.