Timestamp Converter
Convert between Unix epoch timestamps and human-readable dates. Supports seconds and milliseconds.
UTC
20:30:37
12 Jun 2026
UTC+00:00
London
21:30:37
12 Jun 2026
UTC+01:00
Paris
22:30:37
12 Jun 2026
UTC+02:00
Kolkata
02:00:37
13 Jun 2026
UTC+05:30
Tokyo
05:30:37
13 Jun 2026
UTC+09:00
Sydney
06:30:37
13 Jun 2026
UTC+10:00
New York
16:30:37
12 Jun 2026
UTC-04:00
Los Angeles
13:30:37
12 Jun 2026
UTC-07:00
About the Unix Timestamp Converter
Unix timestamps are the backbone of time handling in software — compact, timezone-agnostic integers that every language and database understands. The problem is they're unreadable to humans. This tool converts in both directions: paste an epoch integer to get a human-readable date, or pick a date to get the corresponding epoch in seconds and milliseconds.
What this tool does
Epoch → Date
Paste any 10- or 13-digit integer. Auto-detects seconds vs milliseconds and shows ISO 8601, local, and UTC representations.
Date → Epoch
Pick a date and time from the calendar. Instantly outputs the corresponding Unix integer in both seconds and milliseconds.
World Clock
See the current time across major timezones simultaneously — useful when coordinating deploys or API calls across regions.
Duration Calculator
Calculate the difference between two timestamps in days, hours, minutes, and seconds — handy for SLA calculations and log analysis.
Common use cases
- Decoding
created_at/expires_atfields from API responses and JWTs - Generating timestamps for database inserts or test fixtures
- Debugging log files where events are recorded as epoch integers
- Calculating token expiry windows for OAuth flows
Pipeline
Timestamps often appear inside larger payloads. Related tools:
- JWT Decoder — decode
iatandexpclaims directly. - JSON Formatter — pretty-print API responses that contain timestamps.
- Timezone Converter — convert a specific time between any two timezones.
Privacy
All conversions run entirely in your browser. No data is sent to any server. Read our privacy policy.
Frequently asked
- What is a Unix timestamp?
- A Unix timestamp (also called epoch time) is the number of seconds — or milliseconds — elapsed since 00:00:00 UTC on 1 January 1970. It is the universal language of time across operating systems, databases, and APIs.
- How do I tell seconds from milliseconds?
- A 10-digit number is almost always seconds (e.g. 1700000000). A 13-digit number is milliseconds (e.g. 1700000000000). JavaScript's Date.now() returns milliseconds; most Unix/Linux tools and databases use seconds. This tool detects the unit automatically.
- Is my data sent to a server?
- No. All conversions run 100% in your browser. No timestamps, dates, or timezone data are ever transmitted anywhere.
- Why does the same timestamp show different times in different timezones?
- A Unix timestamp is always UTC-based. The human-readable display depends on the local timezone offset applied. UTC+5:30 (India) will show a time 5 hours 30 minutes ahead of UTC+0 (London) for the same timestamp.
- How do I get the current timestamp in code?
- JavaScript: Date.now() (ms) or Math.floor(Date.now()/1000) (s). Python: import time; time.time(). Go: time.Now().Unix(). Java: System.currentTimeMillis() (ms). All return the same underlying UTC value.
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Timestamp Converter
Timestamp Converter is a free, client-side tool designed to help developers with convert between unix epoch and human-readable dates..
How to Use
- Input your data into the primary editor or upload a file.
- Adjust any necessary configuration options.
- View the output in real-time or click the action button to process.
- Copy or download the results securely.
Privacy First
All processing happens directly in your browser. We never send your sensitive data to our servers.
Frequently asked
Related Tools
Time Zone Converter
Convert times across IANA time zones, detect DST, and plan meetings with a shareable link.
Chmod Calculator
Calculate Unix file permissions visually — toggle rwx bits and get octal, symbolic, and command output.
JSON Formatter / Validator
Format, validate, and beautify JSON with syntax highlighting.
Base64 Encoder / Decoder
Encode and decode Base64 strings instantly.
URL Encoder / Decoder
Percent-encode or decode URL components.
UUID Generator
Generate cryptographically secure UUID v4 values in bulk.