Timestamp Converter

Convert Unix timestamps to human-readable dates and back


Date to Timestamp

About Unix Timestamps

A Unix timestamp (also known as Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds.

Common Timestamp Formats

  • Seconds: 10 digits (e.g., 1609459200)
  • Milliseconds: 13 digits (e.g., 1609459200000)
  • Microseconds: 16 digits (e.g., 1609459200000000)

Use Cases

  • Database date storage
  • API responses and requests
  • Log file timestamps
  • Cross-timezone date handling
  • Cache expiration times

Key Dates

  • 0: January 1, 1970 00:00:00 UTC (Unix Epoch)
  • 2147483647: January 19, 2038 (Y2K38 problem for 32-bit systems)