Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable UTC/local date-time strings and vice versa.
Unix Timestamp Converter
Convert Epoch seconds to UTC & local dates and vice versa.
🔢 Epoch Timestamp → Date
📅 Human Date → Unix Timestamp
Educational Purpose Disclaimer
This calculator is provided for informational and educational estimation purposes only. All calculations and projections are based on standard mathematical formulas and assumed inputs. The output values should not be considered professional financial, legal, tax, or medical advice. ProCalc is not a registered financial advisor or licensed practitioner. Always consult a qualified professional (such as a Chartered Accountant, certified planner, or physician) before making major decisions.
What is the Unix Timestamp Converter?
The Unix Timestamp Converter is an essential utility for software engineers, database administrators, and backend developers working with epoch timestamps. A Unix timestamp (also known as POSIX time or Epoch time) measures time as the total number of seconds that have elapsed since January 1, 1970 00:00:00 UTC (the Unix Epoch), excluding leap seconds.
Epoch timestamps are used universally across Linux systems, MySQL/PostgreSQL databases, API response headers, JWT expiration fields, and log file entries because they provide an unambiguous, timezone-independent integer.
Key Features
- Live Epoch Clock: Real-time ticking counter showing current Unix timestamp in seconds and milliseconds.
- Bi-Directional Conversion: Convert Epoch (seconds or milliseconds) to Human Date, or select any Date/Time to get Unix Epoch seconds.
- Multi-Format Display: Shows converted dates in Local Time, UTC / GMT, ISO 8601, RFC 2822, and relative time ("X minutes ago").
- Batch Converter: Convert multiple timestamps simultaneously.
- Timezone Selector: Instantly view timestamps across major global timezones (UTC, EST, PST, GMT, IST, JST).
How Does the Unix Timestamp Converter Work?
1. Current Time Clock: Observe the live ticking Unix timestamp.
2. Convert Timestamp to Date: Enter any integer (e.g. `1774000000`) to see exact UTC and Local dates.
3. Convert Date to Timestamp: Pick a date and time from the date-picker to generate Unix seconds and milliseconds.
4. Copy Output: Click any format to copy timestamp or formatted ISO string to clipboard.
Formula & Calculation Method
Timestamp to Date:
Date = Unix Timestamp (seconds) × 1000 => JavaScript Date Object
Date to Timestamp:
Unix Timestamp (seconds) = Math.floor(Date.getTime() / 1000)
Unix Timestamp (ms) = Date.getTime()
Example Calculation
Timestamp: `1774000000`
- UTC Date: Thursday, March 19, 2026 10:40:00 AM UTC
- ISO 8601: `2026-03-19T10:40:00.000Z`
- Relative: ~in 2 months (from early 2026)
Frequently Asked Questions
**Timestamp to Date:** Date = Unix Timestamp (seconds) × 1000 => JavaScript Date Object **Date to Timestamp:** Unix Timestamp (seconds) = Math.floor(Date.getTime() / 1000) Unix Timestamp (ms) = Date.getTime()
Disclaimer: This tool is provided for informational and calculation purposes. Output values are estimates based on standard user inputs.