Calculators & Converters
100% Client-Side Private
Instant Result
Timestamp Converter
Convert human date and time to Unix Epoch timestamp (seconds & milliseconds) and vice versa.
Initializing Timestamp Converter...
How to Use the Timestamp Converter
1. Select a Date and Time or click Use Current Time.
2. View Unix timestamp in seconds and milliseconds.
3. Copy timestamp or ISO 8601 string.
2. View Unix timestamp in seconds and milliseconds.
3. Copy timestamp or ISO 8601 string.
Algorithm & Formula Details
Epoch Seconds = Math.floor(Date.getTime() / 1000).
All mathematical calculations, text transformations, and cryptographic hashes are executed strictly in memory inside your browser using modern Web APIs.
Frequently Asked Questions
The number of seconds elapsed since January 1, 1970 00:00:00 UTC.