Timestamp Converter
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About This Tool
Free, private, serverless Unix timestamp converter. Convert between Unix timestamps and human-readable dates bidirectionally. Live current time display, relative time, bulk conversion, seconds/milliseconds toggle. No data leaves your browser — 100% client-side.
How to Use
- To convert a timestamp to date: enter the Unix timestamp and select seconds or milliseconds.
- To convert a date to timestamp: use the date picker and click Convert.
- View the live current timestamp in the Current Time section.
- For bulk conversion, enter multiple timestamps (one per line).
- Copy any result with the copy buttons.
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds since January 1, 1970 (UTC), known as the Unix Epoch. It's a universal way to represent time in computing, used by virtually all programming languages and databases.
What's the difference between seconds and milliseconds?
Standard Unix timestamps are in seconds (10 digits, e.g., 1700000000). JavaScript and some APIs use milliseconds (13 digits, e.g., 1700000000000). The tool supports both formats.
What are the use cases?
Debugging API timestamps, database time field analysis, log file investigation, converting between time zones, scheduling system verification, and data migration.
Does it show relative time?
Yes! Each conversion shows relative time (e.g., '2 hours ago' or 'in 3 days'), making it easy to understand how far a timestamp is from the current moment.
Guides & Tutorials
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