Unix Time Converter

• 100% Free

  Core tools stay free with no paywall to unlock basics.

• No Registration Required

  Open a tool and start immediately - no account needed.

• Privacy First

  We avoid unnecessary collection and keep processing local when possible.

• Browser Processing

  Most tools run in your browser so your input never needs a server round-trip.

• Fast & Secure

  HTTPS everywhere with instant, client-side results for everyday tasks.

• Mobile Friendly

  Layouts and controls are built for phones, tablets, and desktops.

• Updated Regularly

  Tools and content are improved continuously as the platform grows.

Key Features

• Epoch-focused modes

  Switch between epoch → date, date → epoch, and current Unix time without wading through unrelated format options.

• Seconds or milliseconds

  Choose the epoch unit explicitly when converting numeric values - ideal for log timestamps and API payloads.

• Instant current time

  See Unix seconds, milliseconds, and ISO UTC for right now with one click to refresh.

How to Use

1. 1

   Pick a conversion mode

   Use epoch → date for numeric Unix values, date → epoch for ISO strings, or current time to snapshot the present moment.

2. 2

   Enter a value or refresh

   Paste an epoch or date string, select seconds or milliseconds when needed, or click Use current time in now mode.

3. 3

   Copy or export results

   Review Unix seconds, milliseconds, ISO UTC, and local output, then copy or download a report.

Use Cases

• Decoding a raw epoch value from logs

  Convert a numeric Unix timestamp copied from a log line into a readable date without guessing seconds versus milliseconds.

• Generating an epoch value for a script

  Turn an ISO date string into Unix seconds or milliseconds to hardcode into a test fixture or database query.

• Getting the current Unix time on demand

  Grab the current epoch value in seconds and milliseconds for a debugging session or manual API request.

• Sanity-checking database timestamp columns

  Verify whether a stored epoch column represents seconds or milliseconds by converting a sample value and checking the resulting date.

Examples

1705314600 (seconds)

2024-01-15T10:30:00.000Z

2024-01-15T10:30:00Z

Unix seconds: 1705314600 · Unix milliseconds: 1705314600000

Current time mode

Live Unix seconds, milliseconds, and ISO UTC

Benefits

• ✓Convert epoch values without guessing seconds vs milliseconds
• ✓Quickly check what "now" is in Unix time during debugging
• ✓Turn ISO API timestamps into epoch for scripts and databases
• ✓Keep sensitive log timestamps on your device
• ✓Share a readable conversion report with teammates

Best Practices

• Confirm whether your source uses seconds or milliseconds before converting - mixing them is a common debugging mistake.
• Prefer ISO 8601 with an explicit Z or offset when converting dates to epoch.
• Use UTC and ISO fields for server-side comparisons; use local output when validating user-facing displays.
• Pair with the Timestamp Converter when you need auto-detect across many date formats.

Common Mistakes

• Treating a 13-digit millisecond value as seconds, producing a date far in the future.
• Forgetting that Unix epoch is UTC even when the local string shows a different calendar day.
• Using locale-specific date strings without verifying they parse correctly in JavaScript.
• Assuming system clock time matches authoritative server time during incident response.

Privacy Notice

All conversion logic runs in your browser using built-in Date APIs. ToolMint does not upload, store, or transmit the epoch values or date strings you enter. After the page has loaded, you can continue converting offline.

About This Tool

Frequently Asked Questions

Related Tools

• Developer

  Timestamp Converter

  Convert Unix timestamps and date strings locally.

  Privacy firstBrowser
• Developer

  Regex Tester

  Test regex patterns and inspect matches locally.

  Privacy firstBrowser
• Developer

  UUID Generator

  Generate UUID v4 values instantly.

  Privacy firstBrowser

Suggested Articles

• Understanding JWT Tokens: Inspect Safely, Trust Carefully

  What JSON Web Tokens are, how header/payload/signature fit together, how to decode them safely, and the security caveats developers still miss.

• How to Format and Validate JSON Without Losing an Afternoon

  Common JSON syntax errors, when to pretty-print or minify, how validation catches bad payloads early, and practical tips for API debugging.

• Why Browser-Based Tools Are Often More Private

  How client-side processing keeps files on your device, when servers are still necessary, and how ToolMint approaches privacy for everyday utilities.

Share this tool