Check Your Machine's Time

Test your system's time synchronization with our NTP reference server for free.

Real-time comparison
Analyzing...

⏰ Your Machine

Client local time
--:--:--.---
Timezone: --

🌐 RDEM Server

Server time (reference)
--:--:--.---
UTC+1 (Europe/Paris)

Technical Details

Measured offset: -- ms
Estimated network latency: -- ms
Server timestamp: --
Client timestamp: --
User Agent: --

🖥️ Command Line Check (CLI)

For system administrators: test without a browser using our automatic bash script

curl -sL https://ntp.rdem-systems.com/ntp-check.sh | bash
This script:
  • Measures your local machine's time
  • Compares it with our Stratum 1 NTP server
  • Calculates the offset and network latency
  • Displays a color-coded diagnostic (✓ green / ⚠ orange / ✗ red)

Download: ntp-check.sh | JSON API: curl -s https://ntp.rdem-systems.com/time-api.php

Configure NTP on your system

Free NTP Tools

Three independent tools to diagnose your time synchronization: