Unix Timestamp Converter
Convert Unix timestamps to readable dates and back, in your local time zone or UTC.
— Timestamp → date
Seconds or milliseconds — detected automatically.
- Local
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- UTC
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- ISO 8601
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- Relative
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Date → timestamp
- Seconds
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- Milliseconds
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How to use the Unix Timestamp Converter
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Enter a Unix timestamp to see the date.
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Or pick a date to get the timestamp.
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Copy the value you need.
What is a Unix timestamp?
A Unix timestamp is the number of seconds since 1 January 1970 UTC (the epoch) — a compact, timezone-free way to store time used across databases, APIs and logs. This converter turns timestamps into readable local and UTC dates (and ISO 8601), and converts a chosen date back to seconds or milliseconds.
Key features
- Timestamp → local, UTC and ISO 8601
- Date → seconds and milliseconds
- Live current epoch clock
- Auto-detects seconds vs milliseconds
Frequently asked questions
Seconds or milliseconds?
Both — the converter auto-detects 13-digit millisecond values and 10-digit second values, and outputs both.
Which timezone is used?
It shows your browser's local time plus UTC and ISO 8601 so there's no ambiguity.
What is the Unix epoch?
00:00:00 UTC on 1 January 1970, the reference point Unix time counts from.