2.In the Time Zone screen, push the “Menu Switch” down (Next) 
or up (Previous) 
to select the Time Zone you are in.
3. Press the “Menu Switch” inwards (MENU) | to confirm the new time zone and return to the |
SETTINGS Menu.
Daylight
The T.sonic™ 840 has the option of enabling/disabling the Daylight Saving Time (DST) feature for local summer or winter times.
1.In the SETTINGS Menu, push the “Menu Switch” down (Next) 
or up (Previous) 
to
select the Daylight item, then press the “Menu Switch” inwards (MENU) 
to enter the Daylight Mode.
2.Push the “Menu Switch” down (Next) 
or up (Previous) 
to Disable, or Enable the
Daylight feature. Press the “Menu Switch” inwards (MENU) 
to save the selection and return to the SETTINGS Menu.