Automatic time off in Honda Prologue

I’ve been noticing a weird issue with the clock in my Honda Prologue, it keeps running fast when set to automatic time. Mine was about five minutes ahead when I first got the car, and switching to manual mode fixed it temporarily. I even tried disconnecting the 12V battery for a hard reset, which actually worked for me, but a coworker with the same car still has his clock running three minutes fast even after trying the same trick.

Has anyone else run into this? It really seems like a software issue since we can’t get a clear answer at the dealership level either.

that definitely sounds like a software glitch. You’re not alone, seems like a few Honda models have had similar clock issues. Switching to manual time seems to be a temporary fix, but I’ve heard some dealerships mention a pending software update. Have you checked if your infotainment system is fully updated?

My car seems to think it's 35 seconds ahead of the rest of the world. Oh well, I'm not going to let it ruin my day.

I have noticed about a 30 second difference as well.

My car’s automatic timing is always on point..

Handsome_Jack_Hyperion said:

I’ve been noticing a weird issue with the clock in my Honda Prologue, it keeps running fast when set to automatic time. Mine was about five minutes ahead when I first got the car, and switching to manual mode fixed it temporarily. I even tried disconnecting the 12V battery for a hard reset, which actually worked for me, but a coworker with the same car still has his clock running three minutes fast even after trying the same trick.

Has anyone else run into this? It really seems like a software issue since we can’t get a clear answer at the dealership level either.

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I have exactly the same issue since I bought the car 2 weeks ago.

I haven't had that issue, but it definitely sounds like a software problem. It might be a good idea to contact Honda support or check for any available software updates.

My Prologue is 7 minutes fast. First noticed this a couple of weeks ago, but didn't have time to worry about. Yesterday, I played with it some. I could set it to match my iPhone's time (to the nearest minute) after turning off the "automatic time" setting, but when I turn "automatic time" back on, it jumped ahead 7 minutes again. I've compared my iPhone to a weather station/clock with a WWV radio receiver and to my computer's internet time (NTP-based) and all 3 are the same to within a fraction of a second. Only my car is different. (My phone also always agreed precisely with my old Garmin GPS, but I put that in a drawer somewhere when I got the Honda with built-in GPS, so I have to find it and charge it to check that.)

I've seen several recommendations to do a factory reset on the Honda, but I don't know how to do that, and some people claim it doesn't work, or that they then had to manually restore all their custom settings or both, so I would like a little more certainty before trying that.

It is definitely a software bug of some sort, but it is hard to imagine how they might have screwed this up in this fashion. (50 years of programming experience, I know a bug when I see one!) Maybe they failed to correctly calculate the number of milliseconds in 5 hours for the UTC to local timezone display adjustment? (I'm currently in US/EST.)