Unix Timestamp Converter
Convert Unix timestamps and human-readable dates.
Convert in either direction.
How to use Unix Timestamp Converter
Paste a Unix timestamp to convert it to ISO 8601, or choose a local date/time to calculate Unix seconds.
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This tool runs in your browser. ToolHyv does not need to receive the values you enter to perform this calculation.
Frequently asked questions
Are Unix timestamps in seconds or milliseconds?
Unix timestamps are commonly expressed in seconds. The tool also recognizes very large millisecond-style values when converting to a date.
What timezone is the ISO output?
The ISO output is displayed in UTC with the Z suffix.