Timestamp Converter
Unix Timestamp ↔ Human Date
Convert between Unix timestamps and human-readable dates instantly. Live current time, date math, timezone support — all processing happens in your browser.
Current Time (Live)
Unix Timestamp → Human Date
Auto-detects seconds (10 digits) or milliseconds (13 digits)
Human Date → Unix Timestamp
Use the date picker or type a date string
Date Math
Add or subtract time from a date
What Is a Unix Timestamp?
A Unix timestamp (also known as Epoch time or POSIX time) is a way of tracking time as a single integer — the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. This simple format is used by virtually every programming language, database, operating system, and API to store and transmit time data unambiguously.
Our Timestamp Converter lets you convert between Unix timestamps and human-readable dates in both directions. Paste a timestamp to see the date, or pick a date to get the timestamp — results update instantly as you type with no button clicks required.
The tool automatically detects whether your input is in seconds (10 digits) or milliseconds (13 digits), displays results in multiple formats (ISO 8601, RFC 2822, human-readable, relative time), and supports 16 common timezones. The live clock section shows the current time updating every second.
Need to calculate a future or past date? The Date Math section lets you add or subtract any amount of time from a date. All processing happens in your browser — no data is ever sent to a server, making it safe for debugging production logs and inspecting security tokens.
Discover Features
Live clock, bi-directional conversion, timezone support, date math, and full privacy — all in your browser
Live Current Time
See the current Unix timestamp (seconds and milliseconds), ISO 8601, and human-readable date updating every second in real time — always in sync with your system clock.
Bi-Directional Conversion
Convert Unix timestamps to human dates and human dates back to Unix timestamps. Both directions update live as you type — no button clicks needed.
Timezone Support
Select from 16 common timezones including UTC, US regions, Europe, Asia, and Australia. Instantly see how the same timestamp renders in different timezones.
Date Math Calculator
Add or subtract seconds, minutes, hours, days, weeks, months, or years from any date. Get the resulting date and its Unix timestamp instantly.
Auto-Detect Format
Paste a Unix timestamp and the tool auto-detects whether it is in seconds (10 digits) or milliseconds (13 digits). Accepts multiple human date formats including ISO, US, and European styles.
100% Private & Secure
All conversions happen entirely in your browser using JavaScript. Nothing is sent to any server. Close the tab and nothing remains — safe for sensitive log analysis and debugging.
How to Use
Four steps: view live time, convert, pick a timezone, and copy or calculate
View live current time
Open the tool and instantly see the current Unix timestamp (seconds and milliseconds), ISO 8601, and human-readable date updating every second.
Convert a timestamp or date
Paste a Unix timestamp to get the human date, or use the date picker / text input to get the Unix timestamp. Results update live as you type.
Select your timezone
Choose from UTC, local, or 14 other common timezones to see the converted date in the timezone you need. Switch timezones without re-entering input.
Copy results or do date math
Copy any output value with one click. Use the Date Math section to add or subtract time from any date and get the resulting timestamp.
Use Cases
Common scenarios where timestamp conversion saves time and eliminates confusion
Debugging Server Logs
Server logs and APIs often use Unix timestamps. Quickly convert them to human-readable dates to understand when events occurred without mental math.
Database Queries
Convert date ranges to Unix timestamps for WHERE clauses in SQL queries, or convert stored timestamps back to dates for reports and dashboards.
Analytics & Metrics
Analytics platforms and monitoring tools store data with epoch timestamps. Convert them to understand event timelines and calculate time differences.
Scheduling & Deadlines
Calculate future dates by adding days, weeks, or months to a start date. Perfect for planning project milestones, sprint dates, and renewal deadlines.
Security & Token Expiry
Check JWT token expiration timestamps, certificate validity periods, and API key expiry dates by converting the embedded Unix timestamps to readable dates.
Cross-Timezone Coordination
Working with international teams? Convert timestamps to multiple timezones to schedule meetings and understand when colleagues sent messages.
Free vs Paid — Timestamp Converter
Get started free, upgrade when you need more power.
Unlock the Full Power of Timestamp Converter
Remove daily limits, process larger files up to 500 MB, enable batch processing, and get priority support.
Developer Tools includes:
- 13 developer & utility tools
- Unlimited daily uses
- No file size limits
- All output formats
Also available in the All Tools Bundle
FAQ
Frequently asked questions about the Timestamp Converter
Q1. What is a Unix timestamp?
Q2. What is the difference between seconds and milliseconds timestamps?
Q3. Is my data safe when using this tool?
Q4. What date formats can I type in the text input?
Q5. What timezones are supported?
Q6. How does the relative time calculation work?
Q7. Can I do date arithmetic with this tool?
Q8. What is the Y2K38 problem?
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