Timestamp Converter
Convert between Unix timestamps and human-readable dates. Live current timestamp display, bidirectional conversion, UTC and local time output, ISO 8601 format. Supports both seconds and milliseconds.
Current Unix Timestamp
Unix Timestamp → Date
Date → Unix Timestamp
How to Use the Timestamp Converter
- View the current Unix timestamp updating in real time
- Enter a Unix timestamp to convert to a human-readable date
- Or enter a date to convert to a Unix timestamp
- Toggle between seconds and milliseconds
- Copy any value with one click
What Is a Unix Timestamp?
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — a reference point known as the Unix epoch. This simple integer representation makes it trivial for systems to store, compare, and calculate date differences without worrying about time zones, daylight saving rules, or calendar quirks.
Virtually every programming language, database, and operating system supports epoch time internally. Converting between a raw timestamp like 1711584000 and a human-readable date such as "March 28, 2024 00:00 UTC" is a fundamental operation in software development and system administration.
Common Use Cases
Debugging Application Logs
Convert epoch timestamps found in log files into readable dates to quickly pinpoint when errors or events occurred.
Database Timestamp Fields
Interpret integer timestamp columns stored in SQL or NoSQL databases and verify they correspond to the expected dates.
API Date Handling
Many REST and GraphQL APIs return dates as Unix timestamps. Convert them for display or transform human dates into timestamps for requests.
Cron Job Scheduling
Calculate exact timestamps for future cron executions or verify that scheduled tasks ran at the correct epoch time.
Tips & Best Practices
Seconds vs Milliseconds
Unix timestamps are in seconds. JavaScript Date.now() returns milliseconds. A 13-digit number is likely milliseconds — divide by 1000.
Always Store in UTC
Store and transmit timestamps in UTC. Convert to local time zones only at the presentation layer to avoid offset errors.
The Year 2038 Problem
A 32-bit signed integer overflows on January 19, 2038. Use 64-bit integers or language-native date types to future-proof your systems.
Prefer ISO 8601 for Display
When exposing dates to users or APIs, ISO 8601 format (2024-03-28T00:00:00Z) is unambiguous, sortable, and internationally understood.