Tools
Timestamp Converter
Convert Unix timestamps to UTC, ISO 8601, local time, and relative time. Or pick a date and convert it to a Unix timestamp in seconds or milliseconds.
FreeUnix & ISOBoth Directions
Unix Timestamp → Date
Date → Unix Timestamp
Unix (seconds)1791437220
Milliseconds1791437220000
Why developers use Unix timestamps
Unix timestamps are timezone-independent, easy to sort, and use less storage than formatted date strings. They are the standard in databases, APIs, log files, and anywhere you need to store or compare dates programmatically.
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