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Timestamp Converter

Timestamp Converter supports bidirectional conversion between Unix timestamps and dates, auto-detects seconds or milliseconds, and includes local, UTC, and city timezone views for logs, debugging, and database work.

Enter Unix Timestamp

Supports seconds and milliseconds with automatic detection

Timezone

Format

Enter your own format

Timestamp Input

Current Time

Timestamp (seconds)

1704067200

Timestamp (ms)

1704067200000
Timestamp Converter

Quick Start

1
Choose direction: Timestamp → Date or Date → Timestamp
2
Input: 10 digits = seconds, 13 digits = milliseconds; or enter “2024-01-01 12:00:00” / ISO (e.g. 2024-01-01T12:00:00Z)
3
Pick unit & timezone: seconds/milliseconds; Local/UTC/major cities
4
Copy results: multiple common formats with one‑click copy

Common Scenarios

Log tracing

convert timestamps in backend logs to readable date-time to locate issues

Token/session expiry

check JWT exp/iat (issued at) and validate the validity period

DB import/export

convert between timestamps and date fields in SQL/CSV

Frontend display

backend passes seconds/milliseconds; format by the user's timezone on the frontend

Cross-timezone debugging

switch city timezones to observe differences (including DST)

Scheduling

verify triggers match expectations (UTC vs local)

API parameters

validate request/response time units (seconds/ms) and formats

Audit/compliance

convert between ISO and timestamps for manual review

Units, Timezones & Formats

Supported formats: ISO 8601, RFC 2822, YYYY‑MM‑DD HH:mm:ss, YYYY/MM/DD HH:mm:ss, HTTP/SQL, etc
Custom format: common templates supported (e.g. YYYY‑MM‑DD HH:mm:ss.SSS)
Auto‑detect: 10‑digit seconds or 13‑digit milliseconds
Timezone: select city timezones, DST handled automatically, with UTC offset

Usage Advice

Store in UTC, display in user timezone to avoid double conversion
Logs/API debugging: trace timelines, verify token expiry (exp), validate time params
Intervals: for time differences, export results and compute externally
Real‑time: header shows current time and timestamp (milliseconds update)

Limitations & Compatibility

Precision: JavaScript Date is millisecond‑precision; use libraries/strings for µs/ns
Leap seconds: not displayed explicitly; most systems align to UTC transparently
Year 2038: 32‑bit Unix time will overflow on 2038‑01‑19 03:14:07 (UTC); prefer 64‑bit timestamps
Input rules: unusual characters are normalized; invalid/ambiguous inputs are flagged

Privacy & Security

All processing happens locally in your browser. You can replace, clear, and re-run the current content at any time.

FAQ

6

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