Timestamp Tools
A Unix timestamp counts the seconds (or milliseconds) elapsed since 00:00:00 UTC on 1 January 1970 (the Unix epoch). It is the standard way computers store a moment in time because it is unambiguous: no time zones, no daylight saving, and no calendar variations. These tools convert timestamps to readable dates and back, in UTC or your local zone.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps in seconds or milliseconds.
Date to Unix Timestamp
Turn any date and time into epoch seconds and milliseconds.
Unix Timestamp to Date
Decode epoch seconds or milliseconds into a readable date and time.
Current Unix Timestamp
Live epoch seconds and milliseconds, updated every second.
Milliseconds to Date
Convert 13-digit epoch milliseconds into readable dates.
UTC Timestamp Converter
Decode a timestamp into UTC plus major world time zones at once.
ISO 8601 Date Converter
Parse ISO 8601 strings and build them from a date, time and zone.
When to use these tools
- Reading timestamps from APIs, databases, and log files
- Generating timestamps for API requests, signatures, or database rows
- Checking whether a value you found is in seconds or milliseconds
- Producing ISO 8601 strings for JSON payloads and configuration
Frequently asked questions
Is a Unix timestamp affected by time zones?
How do I tell seconds and milliseconds apart?
Do these tools send my data anywhere?
Other categories
Time Converters
Switch between 12-hour, 24-hour, and military time formats instantly.
Time Zone Tools
Convert times across IANA time zones, run a world clock, and plan meetings.
Date Calculators
Days between dates, age, business days, week numbers, and more.
Timers
Countdown timer, stopwatch, and Pomodoro sessions that stay accurate.
Work & Hours Tools
Shift durations with breaks, overnight handling, and decimal hours.