Zeitstempel-Konverter

So verwendest du Zeitstempel-Konverter

1. 1Enter the time, date, or value you want to convert.
2. 2Select the target format or timezone.
3. 3The tool calculates the result instantly.
4. 4Copy the converted value for your use.

Funktionen

• ✓100% kostenlos — keine Registrierung, kein Abo, keine Werbung
• ✓Läuft vollständig im Browser — Daten verlassen niemals dein Gerät
• ✓Schnell und ressourcenschonend — sofortige Ergebnisse
• ✓Plattformübergreifend — Desktop, Tablet und Smartphone

Was ist Zeitstempel-Konverter?

A Unix timestamp is the number of seconds (or milliseconds) elapsed since the Unix epoch: 1970-01-01 00:00:00 UTC, excluding leap seconds. Defined by POSIX.1, it is the standard time representation in Unix systems, databases, and APIs. Timestamps are timezone-independent (always UTC).

Wie funktioniert Zeitstempel-Konverter?

The converter parses timestamps (seconds or milliseconds) and creates a JavaScript Date object. The Date is displayed in UTC and the user's local timezone. Reverse conversion takes a date string, parses it, and computes (date.getTime() - epoch) / 1000.

Typische Anwendungsfälle

• ✓API parameters — pass time as integer to avoid timezone ambiguity
• ✓Database storage — store timestamps for consistent ordering
• ✓Cache expiry — compute TTL in seconds
• ✓Log analysis — correlate events across timezones

Unix Timestamp vs ISO 8601

Timestamps are compact integers, ideal for storage and computation. ISO 8601 strings (e.g., 2024-01-15T10:30:00Z) are human-readable and self-describing (includes timezone). Use timestamps for internal storage and computation; use ISO 8601 for API responses and human display. Most databases support both.

Sicherheit & Datenschutz

This tool runs entirely in your browser. Timestamps themselves have no security concerns, but be aware of the Y2038 problem: 32-bit signed integer timestamps overflow on 2038-01-19 03:14:07 UTC. Use 64-bit integers (bigint) for future-proofing.

Technische Details

Epoch: 1970-01-01 00:00:00 UTC (POSIX.1). Seconds: 10-digit (until 2286). Milliseconds: 13-digit (JavaScript Date.getTime()). Y2038 limit: 2147483647 (2^31-1) on 32-bit systems. Leap seconds: NOT counted in Unix time. JavaScript Date range: ±8,640,000,000,000,000 ms (±275,760 years). ISO 8601 format: YYYY-MM-DDTHH:mm:ss.sssZ.

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