[henrylr]

My Longines Conquest quartz Ti VHP has the L237.2 movement. I think it was made in the early 1990s, just before the first perpetual calendar model was released. The date starts changing about 11AM. Can someone tell me how to change the date change to 11PM?
Thanks

 

[SFwatchGuy]

Sounds like you need to reset the time. Your watch appears to be set with noon being 12 midnight.

 

[henrylr]

I think you are correct so how do I change it to midnight?

 

[SFwatchGuy]

Pull the crown out and advance the hands until the date changes as the hands are around or pass the 12 o'clock position. That time is midnight. Now set the time according to the actual time at your location. If the time is 8 AM advance just 8 hours. If the time is 4 PM advance 12 full hours past noon and then 4 more full hours to 4 PM. You should be able to find an owners manual for your watch on-line. It will explain everything.