Timestamp Converter

Convert between Unix epoch time and human-readable dates

1787465878

Unix timestamp

Interpreted as seconds since the epoch (auto-detected).

Date & time (local)

Converted

Local time

Sunday 23 August, 2026 at 11:47:58 am IST

UTC

Sun, 23 Aug 2026 06:17:58 GMT

ISO 8601

2026-08-23T06:17:58.000Z

Unix seconds

1787465878

Unix milliseconds

1787465878000

Relative

1 second ago

A two-way Unix timestamp converter. Type an epoch value (seconds or milliseconds, auto-detected) to see it as a local date, UTC, ISO 8601, and relative time — or pick a date and time to get its epoch value back, with a live ticking current timestamp for reference.

Is my data sent anywhere?
No. All parsing and conversion happens locally using your browser’s clock and JavaScript’s Date object — nothing is sent to a server.
How does it know if my timestamp is in seconds or milliseconds?
By magnitude: a value at or above 100,000,000,000 is treated as milliseconds (a seconds-based epoch doesn’t reach that until the year 5138), otherwise it’s treated as seconds. You can override the auto-detection with the Seconds/Milliseconds toggle if needed.
Can I convert the other direction — a date to a timestamp?
Yes — use the date & time picker to choose a local date and time, and the Unix timestamp field updates to match automatically. The two fields stay in sync in both directions.
What timezone is used?
The date & time picker and the "Local time" row both use your browser’s local timezone. The UTC and ISO 8601 rows show the same instant in UTC for when you need a timezone-independent reference.