We recommend that the units time be set by GPS, refer customer to user manual for instructions – section Setting The Time.
As for the time on the Axis, it will not retain the time when it is turned off. To maintain the time, it is best to leave the unit turned on between rounds, otherwise you will need to connect to a gps signal to reset the correct time.
Time setting, for states with Daylight Saving, the unit will require the Daylight option set to on or off. (default is set to Auto, but it won’t adjust correctly to daylight saving time)
Refer to user manual, section - Setting The Time
Click link to Sureshot User Manuals > https://mgigolf.com/pages/sureshot-axis-manual
Or, select Support on the top of the page > then User Manuals > Sureshot > then your model