Convert explicit Unix seconds or milliseconds to UTC and an IANA zone, or convert an offset ISO time into a timestamp.
Your input
Outputs are cleared when the input changes.
Result
Enter your data or use the example, then run the tool.
Worked example
1700000000 seconds is 2023-11-14T22:13:20Z; -1 second is just before the Unix epoch.
Method
Parse the selected unit with integer arithmetic, validate the Date range and display the same instant in UTC and the selected zone.
Limits
No unit guessing, microseconds, leap-second simulation or offset-free local times. Reverse ISO input uses four-digit years and at most millisecond precision.
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