Unix Timestamp Converter

Why use Unix Timestamp Converter?

Unix Timestamp Converter works out the answer precisely from local calendar dates, so there are no timezone or daylight-saving surprises.

• Runs instantly in your browser — nothing to install, nothing uploaded.
• Completely free, with no account, no watermarks and no usage limits.
• Handles Seconds since 1970-01-01T00:00:00Z; Milliseconds since the same epoch.
• To read a timestamp, paste it and let the tool auto-detect seconds or milliseconds (or set it manually).
• Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use Unix Timestamp Converter

1. To read a timestamp, paste it and let the tool auto-detect seconds or milliseconds (or set it manually).
2. See the UTC, local, ISO 8601, relative time and weekday for that instant.
3. To build a timestamp, enter a date and time and choose UTC or local interpretation.
4. Use the live clock for the current Unix time, and copy any value with one click.

Examples

• Converting 1700000000 to a human-readable UTC date.
• Getting the Unix seconds for a specific local date and time.

Supported formats

• Seconds since 1970-01-01T00:00:00Z
• Milliseconds since the same epoch

Limitations

• Local conversions depend on your device's timezone and daylight-saving rules.
• Auto-detection uses magnitude; override it if your value is unusual.