How does the Unix Epoch & Timestamp Converter work?

Instant Unix timestamp converter: Convert epoch seconds and milliseconds to human-readable UTC/Local dates and vice versa. Live ticking epoch clock with 100% private in-browser execution. All processing takes place locally inside your web browser with 100% mathematical precision.

Is this tool free and private?

Yes, this tool is 100% free with no registration, no watermarks, and zero server uploads. Your data never leaves your device.

Can I use this tool on mobile devices?

Yes, Unix Epoch & Timestamp Converter is fully responsive and optimized for all modern Android, iOS, tablet, and desktop web browsers.

LIVE CLOCK · 100% IN-BROWSER

Unix Epoch & Timestamp Converter

Convert Unix timestamps (seconds & milliseconds) into human-readable ISO 8601, UTC, and local date formats. Frequently paired with JWT token expiration debugging.

CURRENT UNIX EPOCH TIME

1700000000 seconds since Jan 01, 1970

🔢 1. Timestamp to Human Date

Enter Unix Epoch (Seconds or Milliseconds):

Relative Time

Just now

ISO 8601 (UTC)

2026-10-25T10:14:00.000Z

GMT / UTC String

Sun, 25 Oct 2026 10:14:00 GMT

Your Local Time

Sun Oct 25 2026 15:44:00 GMT+0530 (IST)

📅 2. Human Date to Epoch Timestamp

Pick Date & Time:

Epoch Seconds (Standard JWT exp)

1729850000

Epoch Milliseconds (JavaScript Date.now())

1729850000000

⚡ Connected Developer Workflows:

⚡ Inspect JWT Expiration Claims 🔤 Base64 & UUID Encoders 💻 JSON Formatter & Validator 🛡️ Cryptographic Hash Generator

Epoch Seconds Cheatsheet for Developers

Duration / Interval	Seconds	Usage in JWT & API Cookies
1 Minute	`60`	Short-lived MFA one-time codes
1 Hour	`3,600`	OAuth2 Bearer Access Token expiry
1 Day	`86,400`	Daily session cookies
7 Days (1 Week)	`604,800`	Remember-me logins & refresh tokens
30 Days (1 Month)	`2,592,000`	Long-lived mobile refresh tokens
1 Year	`31,536,000`	Permanent public API key expirations