Date & Time
Timestamp Converter: Unix Time
Convert Unix timestamps to dates and back.
Unix timestamp = seconds since Jan 1, 1970 UTC.
Why Use
- Timezone-independent
- Easy arithmetic
- Compact
Seconds vs Milliseconds
Unix: 10 digits. JS: 13 digits. Mismatch causes errors.
2038 Problem
32-bit overflows Jan 19, 2038. 64-bit is safe.
Frequently Asked Questions
Current timestamp?
JS: Math.floor(Date.now()/1000). Python: int(time.time()).
JS shows 1970?
JS uses ms. Multiply seconds by 1000.
Timezone-dependent?
No. Same worldwide. Display varies.