DEVELOPER TIME UTILITY
Convert Unix Timestamps
TimestampConverter Mode
AutoTimestamp Unit
UTC + LocalTime Zone View
ValidInput Status
🕓 100% Private: Every timestamp conversion happens locally inside your browser.
Offline-ready
Free Unix Timestamp Converter
Convert Unix epoch values into readable dates or create Unix timestamps from calendar dates. This tool supports seconds, milliseconds, UTC, local time and ISO 8601 output.
Two-Way Conversion
Timestamp to date and date to timestamp.
Timestamp to date and date to timestamp.
Auto Detection
Automatically detects seconds or milliseconds.
Automatically detects seconds or milliseconds.
UTC & Local Time
View both time zone representations.
View both time zone representations.
Live Unix Clock
See the current timestamp updating live.
See the current timestamp updating live.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp counts elapsed seconds since 1 January 1970 at 00:00:00 UTC.
How can I identify milliseconds?
Modern timestamps with 13 digits are usually milliseconds, while 10-digit values are usually seconds.
Does this tool work offline?
Yes. This single HTML file has no CDN, server or external dependency.