Diagnose der Gerätezeit

Uhrabweichungstest

Compare your device clock with network-calibrated atomic time. Use the offset, delay, and accuracy estimate to decide whether your computer needs a time sync check.

Abweichung der Geräteuhr

Kalibrierung○ Synchronisierung

Measuring network delay and comparing your device clock with calibrated time.

Netzwerkverzögerung

Geschätzte Genauigkeit

Letzte Synchronisierung

What It Means

Positive offset means calibrated time is ahead of your device clock. Negative offset means your device clock is ahead.

Live-Vergleich

Gerätezeit: -
Atomzeit: -

Diagnosebericht

Copy this report when troubleshooting login, certificate, logging, or distributed-system time issues.

Time.ms Uhrabweichungsbericht

Under 100 ms

Usually excellent for browser, logging, and most user-facing workflows.

Over 1 second

Worth checking automatic time sync, VPN behavior, VM host time, or system time settings.

Over 1 minute

Can break authentication, certificates, scheduled jobs, and audit trails.

Related Time Tools

After checking drift, convert timestamps, inspect UTC, or use the NTP setup guide to correct system time.

Exakte aktuelle Uhrzeit

Atomzeit mit Millisekunden, UTC, Unix, Verzögerung und Geräteabweichung.

Unix-Zeitstempel

Konvertiere epoch Sekunden/Millisekunden zu lokal, UTC und ISO 8601.

UTC-Zeit

Prüfe UTC mit Millisekunden und konvertiere lokale Zeit zu UTC.

ISO 8601

Erstelle und analysiere ISO-Zeitstempel für Logs, APIs und Datenbanken.

NTP einrichten

Konfiguriere Computer oder Server für synchronisierte Zeit.

Genauigkeitsleitfaden

Verstehe RTT, geschätzte Genauigkeit, Abweichung und Datenschutz.

Uhrabweichung FAQ

What is clock drift?

Clock drift is the difference between your device clock and a more reliable time reference.

What offset is acceptable?

A few hundred milliseconds is usually fine for browsing, while authentication and distributed systems often need tighter alignment.

How does this test estimate accuracy?

Time.ms measures network round-trip delay and uses half that delay plus a small browser timing allowance.