Unix Timestamp - Milliseconds Support, Timezone Aware
Convert Unix timestamps to dates and vice versa. Supports both seconds and milliseconds. Shows timezone-aware conversions, relative time. Real-time current timestamp display. Free Unix epoch converter.
Current Unix Timestamp
Timestamp to Date
Date to Timestamp
Common Timestamps
About Unix Timestamps
- • Unix time is the number of seconds since January 1, 1970 UTC
- • JavaScript uses milliseconds, while many systems use seconds
- • The Year 2038 problem affects 32-bit systems storing time as signed integers
- • Negative timestamps represent dates before 1970
- • Timestamps are timezone-independent
How to Use
- 1
Convert timestamp to date
Enter a Unix timestamp and select the unit (seconds or milliseconds)
- 2
Convert date to timestamp
Select a date and time to get the Unix timestamp
- 3
View current timestamp
See the current Unix timestamp updating in real-time
- 4
Copy results
Click copy buttons to save values to clipboard
Frequently Asked Questions
What is a Unix timestamp?
What is a Unix timestamp?
A Unix timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970 00:00:00 UTC. It's a universal way to represent time that's timezone-independent and used widely in programming and databases.
When should I use seconds vs milliseconds?
When should I use seconds vs milliseconds?
Use seconds for traditional Unix timestamps and most server-side applications. Use milliseconds for JavaScript, Java, and modern web APIs which typically work with millisecond precision.
What is the Year 2038 problem?
What is the Year 2038 problem?
The Year 2038 problem affects 32-bit systems that store Unix timestamps as signed integers. On January 19, 2038 at 03:14:07 UTC, these timestamps will overflow, potentially causing system failures. Modern 64-bit systems are not affected.
Can I use negative timestamps?
Can I use negative timestamps?
Yes, negative timestamps represent dates before January 1, 1970. For example, -86400 represents December 31, 1969. This is useful for historical dates and calculations.