Server Time & Latency
Millisecond-precision clock with network latency (RTT) measurement for ticketing sites.
Network Latency Measurement
⏰ Time Alarm
Ticketing Tips
- Sync PC Time: Windows Settings → Time & Language → Sync now
- Consider Latency: Click RTT/2 milliseconds early (e.g., RTT 50ms = click 25ms early)
- Refresh Timing: Refresh 10-15 seconds before sale opens
- Wired Connection: Ethernet is more stable than WiFi
- Browser: Use Ctrl+Shift+R for hard refresh (bypasses cache)
- Multiple Tabs: Open multiple tabs (but not too many to avoid IP blocking)
⏱️ What is Server Time?
Server Time is a precision timing tool for ticketing, reservations, and time-sensitive events. Uses performance.now() API with drift correction to minimize JavaScript timer inaccuracies. Measures network round-trip time (RTT) to help you understand when your clicks reach the server. Time alarm feature lets you set notifications for exact moments, perfect for ticketing preparation.
📊 Feature Comparison
| Feature | Description | Use Case |
|---|---|---|
| Millisecond Clock | Drift-corrected via performance.now | Accurate current time |
| RTT Measurement | 3 samples, uses minimum | Network latency analysis |
| One-way Latency | Estimated as RTT/2 | Click timing calculation |
| Time Alarm | Second-precision alerts | Ticket sale notifications |
| Server Time Sync | Alarms based on measured server | Synchronized alerts |
💡 Ticketing Success Tips
- Sync PC time: Synchronize with internet time server in Windows settings
- Account for RTT: Click early by one-way latency (RTT 50ms = 25ms early)
- Wired connection: Ethernet is more stable with lower latency than WiFi
- Hard refresh: Use Ctrl+Shift+R to bypass browser cache
Frequently Asked Questions
What is the difference between RTT and one-way latency?▼
RTT (Round Trip Time) is the total time to send a request and receive a response. One-way latency is half of RTT, estimating how long your click takes to reach the server. If RTT is 50ms, one-way is approximately 25ms.
Why measure 3 times?▼
Network conditions can fluctuate momentarily. By taking 3 measurements and using the lowest (fastest) RTT, we reduce network noise and get a more accurate latency measurement.
What is drift correction?▼
JavaScript's setInterval/setTimeout accumulate timing errors over time. performance.now() is a high-precision timer without this drift, so we use it as a reference to correct Date.now() values.
What is Server Time & Latency?
A precision timing tool for ticket purchases, reservations, and time-sensitive events. Displays PC time in milliseconds and measures network round-trip time (RTT) to websites. Uses performance.now() for drift-corrected accuracy.