Unix Timestamp Converter (Epoch to Date & Date to Epoch)
Convert between Unix Epoch timestamps (in both seconds and milliseconds) and human-readable calendar dates instantly. Whether you are debugging API responses, analyzing server logs, or scheduling database records, get instantaneous multi-timezone conversions.
Features a real-time live Unix clock, bidirectional timestamp-to-date and date-to-timestamp converters, ISO 8601 and RFC 2822 formatting, relative human time descriptions ("X minutes ago"), and one-click clipboard copying.
100% Client-Side Processing & Privacy Guarantee
All processing takes place strictly inside your client browser using WebAssembly, Canvas, and Web Workers. Your files, documents, and data never leave your device and are never sent to external servers.
Technical Specifications & Browser Capabilities
Local runtime details and instant zero-server processing environment
Step-by-Step Instructions
1. Enter Timestamp or Date
Type or paste a numeric Unix timestamp (e.g. 1735689600) or select a calendar date and time from the date-picker.
2. Automatic Unit Detection
The converter automatically distinguishes between Unix seconds (10 digits) and Unix milliseconds (13 digits) to prevent conversion errors.
3. Copy Formatted Outputs
View the instant breakdown in UTC, your local timezone, ISO 8601, and relative time format, and click copy next to any format.
Core Advantages & Features
Bidirectional Real-Time Conversion
Converts seamlessly from Unix timestamp to formatted date, and from calendar date to Epoch seconds/milliseconds.
Smart Seconds vs Milliseconds Detection
Eliminates unit ambiguity by automatically detecting 10-digit second timestamps and 13-digit millisecond timestamps.
Live Real-Time Unix Clock
Monitors the current epoch time with a running live ticker and pause/resume capability.
Comprehensive Date Standards
Outputs in UTC (GMT), Local Browser Time, ISO 8601 (2026-01-01T00:00:00Z), RFC 2822, and relative time strings.
Frequently Asked Questions
What is a Unix Timestamp (Epoch Time)?
What is the difference between Unix seconds and milliseconds?
What will happen during the Year 2038 problem (Y2K38)?
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