Unix Timestamp & Epoch Converter
Convert Unix epoch timestamps to human-readable UTC and local date-time strings, and vice versa.
Timestamp Converter
Converted Date & Time
About the Unix Timestamp & Epoch Converter
Unix time (also known as Epoch time or POSIX time) is a system for tracking time as the number of elapsed seconds since 00:00:00 UTC on 1 January 1970 (the Unix Epoch), minus leap seconds.
Our converter lets you quickly inspect live epoch seconds, convert integer timestamps to UTC and local calendar dates, or convert any date picker selection into 10-digit seconds and 13-digit millisecond timestamps.
How the Calculations Work
Multiplies timestamp seconds by 1,000 to construct standard JavaScript Date objects and format into ISO 8601, UTC, and locale strings.
Epoch Seconds = Date.now() / 1000
Variables & Definitions
- Timestamp: Elapsed seconds since Jan 1, 1970 UTC
- Date: Human readable calendar date and time
1700000000 converts to Tuesday, November 14, 2023 10:13:20 PM UTC.
Key Terms Explained
Unix Epoch
The initial reference point: January 1, 1970, 00:00:00 UTC.
Year 2038 Problem
The moment on January 19, 2038 when 32-bit signed integers overflow; modern systems use 64-bit integers to avoid this.
Practical Tips & Pitfalls to Avoid
Watch for 10 vs 13 digits
10 digits denote seconds; 13 digits denote milliseconds.
Frequently Asked Questions
The tool displays live running epoch seconds updated every second.