The LOGiT loggers have an internal Real Time Clock. This clock is updated every second. During logging, the time stamps of the data samples and of the alarm occurrences are set by the Real Time Clock.
When you first connect a new battery to the logger and setup your logger for the first time, the LOGiTpc software automatically matches the logger clock to your computer’s clock. However, you can also manually set the logger’s real time clock.
To set the logger’s Real Time Clock, from the Logger menu select Set Clock…. Make sure that "Use Windows Clock" is unchecked, then enter the current date and time in the appropriate fields.
You cannot set the Real Time Clock while logging is in progress. You must end logging before the Real Time Clock can be set.