Unix Timestamp & Epoch Converter
Convert Unix timestamps to human-readable UTC and local dates or generate epoch timestamps from date pickers.
Timestamp → Human Date
Human Date → Timestamp
How to Use Unix Timestamp Converter
- To convert a timestamp: enter epoch seconds or milliseconds into the timestamp box.
- View the instant conversion to UTC date string, local timezone, and relative time.
- To generate a timestamp: pick a date and time using the interactive picker.
- Copy the current live timestamp or converted values with one click.
Technical Specifications & How It Works
Unix time tracks the number of seconds that have elapsed since the Unix Epoch on January 1, 1970, at 00:00:00 UTC (excluding leap seconds).
Because modern APIs vary between second-precision (10 digits) and millisecond-precision (13 digits), this tool supports seamless switching between both units.
All date calculations and timezone adjustments run instantly in client-side JavaScript.
Frequently Asked Questions
What is a Unix epoch timestamp?
It is the count of seconds elapsed since 00:00:00 UTC on Thursday, January 1, 1970, used widely across databases and operating systems.
What is the difference between 10-digit and 13-digit timestamps?
10-digit timestamps measure elapsed time in seconds, while 13-digit timestamps measure elapsed time in milliseconds (common in JavaScript).
What is the Year 2038 problem?
On January 19, 2038, 32-bit signed integers will overflow. Modern 64-bit systems handle timestamps safely for billions of years into the future.