The day and date on my vintage timex indiglo doesn't work anymore. What should i do? Will it affect the time? The light works perfectly.

Google shows how.

https://www.leaf.tv/articles/how-to-set-the-date-for-a-timex-expedition-indiglo-watch/
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?Quoting from the link above:
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?"The Timex Expedition Indiglo wristwatch tells the time and date, illuminates at the press of a button, and can wake you up at a designated time. Once you receive and adjust your watch to your liking, you might have questions about how to program the date properly. You’ll want to have an accurate watch before wearing and relying on it throughout your day in class, at work or while exercising. You can set the date on your watch with a few simple steps.
Pull the plastic guard from beneath the crown knob (located on the right edge of the watch), and push the crown knob into the watch to start your watch. You will see the second hand begin to advance.
Pull the crown knob out to the middle position to set the day. The crown knob has three positions: “In,” “Middle” and “Out.” Turn the crown knob clockwise to advance the days up, until the current day appears in the window on the right side of the watch face. Turn the knob counterclockwise to move the date down in number. Push the crown knob all the way in to start the watch.
Pull the crown knob completely out, if the day doesn’t change with the knob in the middle position, and cycle the time backward or forward through 24-hour periods until you arrive at the current day. Push the knob in to start the watch.
Pull the crown out to the middle position and adjust your date to the next month for months that have less than 30 days. Your watch will cycle through 31 days every month, so manual adjustments for shorter months are required."

Video showing how to set a similar watch:

https://www.leaf.tv/articles/how-to-set-the-date-for-a-timex-expedition-indiglo-watch/


How to Set the Date for Timex Expedition Indiglo Watch LEAFtv

need to put in fresh battery I know you may have just bought new one but it is old check for date on back package

To set the time and date on your Timex Indiglo watch with a CR2016 battery, follow these steps:

1. Press and hold the stem (the button on the side of the watch) until the display begins to flash.
2. Use the stem to cycle through the different settings: time, day, date, and year.
3. When you reach the setting you want to change, use the stem to adjust the value.
4. Once you have set the time, day, date, and year to the correct values, press the stem to exit the setting mode.

If you have trouble setting the time and date on your watch, you may want to consult the manual that came with the watch for more detailed instructions. If you do not have the manual, you may be able to find a copy online or you can try contacting Timex customer service for assistance.

mcdevito75 here, Sorry to hear of your disappointment with your Timex watch, thru the years quality of workmanship and parts may have fallen a bit, try a new battery in your timex, a high quality Battery. Anyway here is Timex Customer service number, 800-448-4639 Regards, Mike D

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all TIMEX watch manuals.Rate me, please.

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all TIMEX watch manuals.Rate me, please.

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all TIMES watch manuals. Rate me, please

Take this to a qualified watchmaker for inspection.

If you have any further questions please let me know.
Many thanks!
Mike Kenley
TimeOut
Worldwide watch and clock services
If it don't tick I can fix

The indiglo technology is time limited (it dims over the years with use) and cannot be repaired - have you had the watch a long time? if so, I'm afraid it's time to get a new one. Sorry!