Patton electronic 2603, 2621, 2635 - page 107

System Clock Setting 107
Models 2603, 2621, and 2635 User Manual 11 • SNTP Client Configuration
Figure 83. Configuration of the internal system calendar clock
After entering the system clock values, click on the Set Clock button to save in volatile memory.
If the OnSite is rebooted, either soft or by power-cycling, the Clock Setting returns to its default value.