⏱️ Unix Timestamp Converter
Convert between Unix timestamps and dates, seconds or milliseconds
✓ Runs entirely in your browser — your data never leaves this device
About This Tool
Convert Unix timestamps (seconds or milliseconds) to/from local date-time. Auto-detects the unit and shows your timezone — a daily tool for debugging time fields in APIs.
How to Use
- Type a seconds or milliseconds value
- Local time, ISO time and timezone appear below
- Or pick a date-time to convert back to a timestamp
FAQ
10-digit vs 13-digit timestamps?
10 digits = seconds, 13 digits = milliseconds. This tool auto-detects and converts.
Why is the result off by 8 hours?
Timestamps have no timezone; display follows your device locale. China Standard Time is UTC+8.