Hello Christie Thomas,
Without an actual MODEL NUMBER...
I can only offer that Timex OWNERS MANUALS
(EASILY found on manualslib.com)...
are the quickest & best source of information...
(like model T231 uses the "TUNING" arrows
to adjust HOURS/Minutes.. See here)
Timex T231 User Manual Controls And Indicators
Hope this helps
Carnac the Magnificent
Most of the time, replacing a low battery will reset the light allowing functionality.
Otherwise, you will need to open the watch and press the reset button shown in this picture.
These watches are waterproof, therefore you must be very careful not to damage seals. If you are not confident in this procedure, your local jewelry store will typically do this for you.
Hello, Jack -
If you have not thought to check the Timex website, that is where I would look first.
See this Timex Support web page and look at entry #1:
https://www.timex.com/customer-service.html
Call the phone number given there.
Ta dah!