Unix Timestamp Converter
Instantly convert Epoch and Unix timestamps to human-readable dates, and transform calendar dates back into Unix time.
Unix Timestamp Converter
This calculator auto-updates when values change.
Timestamp to local date
5/4/2026, 1:54:26 AM
Timestamp to ISO
2026-05-04T01:54:26.000Z
Date to Unix seconds
1777859640
Date to Unix milliseconds
1777859640000
About This Unix Timestamp Converter
This Unix timestamp converter translates between seconds or milliseconds since the Unix epoch and readable date/time values.
It is useful when debugging logs, API responses, database records, analytics exports, and scheduled events.
How to Use This Tool
- 1
Enter a timestamp or date
Use the timestamp input or switch to date and time fields.
- 2
Choose the context
Review local time and ISO/UTC output so you know exactly how the value is interpreted.
- 3
Copy the converted value
Use seconds, milliseconds, local date, or ISO output in your workflow.
Frequently Asked Questions
What is Unix time?v
Unix time is the number of seconds elapsed since 00:00:00 UTC on January 1, 1970.
Are timestamps seconds or milliseconds?v
Both formats are common. The calculator detects large values as milliseconds and also shows both outputs.
Why does timezone change the displayed date?v
A timestamp represents a fixed moment, but local display changes based on timezone.