Developer Tools
~/timestamp-converter
// Convert Unix timestamps to dates or dates to epoch. Live current timestamp.
Current Unix Timestamp
-
milliseconds: -
// seconds or milliseconds - auto detected
Unix Time
Unix timestamp counts seconds elapsed since January 1, 1970 00:00:00 UTC - the Unix epoch.
Multi-timezone
See the same timestamp displayed across US, EU, and Asia timezones simultaneously.
Auto-detect
Automatically detects whether your input is in seconds (10-digit) or milliseconds (13-digit).
// FAQ
What is a Unix timestamp?
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC (the Unix epoch). It is timezone-independent and widely used in programming.
Seconds vs milliseconds - how to tell?
A 10-digit number is seconds (e.g. 1700000000). A 13-digit number is milliseconds (e.g. 1700000000000). This tool auto-detects which one you input.
Why does the same timestamp show different times?
A Unix timestamp is a single point in time. The displayed date and time differs by timezone because each timezone applies a different UTC offset.
What is the maximum Unix timestamp value?
The 32-bit signed integer limit is 2,147,483,647, which corresponds to January 19, 2038. Modern systems use 64-bit integers which extend this limit billions of years into the future.
How do I get the current Unix timestamp in code?
JavaScript: Math.floor(Date.now() / 1000). Python: import time; int(time.time()). PHP: time(). Linux shell: date +%s.
Is millisecond precision supported?
Yes. Paste a 13-digit millisecond timestamp and this tool will auto-detect it and convert accordingly.
// Common Use Cases
Debugging API responses
APIs often return created_at or updated_at as a Unix timestamp. Paste it here to confirm the exact date and time in your local timezone.
Log analysis
Server logs frequently use epoch timestamps. Convert them quickly to understand when an event actually occurred without mental math.
Scheduling and expiry logic
Convert a future date to a Unix timestamp to set token expiry, session timeouts, or scheduled job times in your code.
Cross-timezone comparisons
Check the same timestamp in multiple timezones simultaneously to coordinate across US, EU, and Asia teams.