Time Zone issues on iOS14

Seeing the same issue on both iPhone 6 and iPhone 8 running 12.4.9 and 14.2 respectively. Issue shows on connected Apple watches too and is intermittent. Have changed timezone to manual / Vancouver and I'm on the Telus Network.

With Screen Time enabled on my son's phone the default is to set time automatically with no option to set manually. I will have to disable screen time on his phone until this bug is fixed.

My time has also reset twice since the recent time change. I am on pacific time. This happened to me on 14.2. My settings show that it is set to automatic, but twice it has reverted to fall an hour back (seems to happen during the night). If I toggle 'automatic' off and then on again, the time corrects itself. iPhone X.

My problem in Vancouver is on an iPhone SE2 that has a SIM card and unlimited texting, but no data plan. I spent an hour on the phone with the carrier (Telus) and the only inferior solution we reliably came up with is to leave "Set Automatically" on Date/Time off. He intimated that a regular customer with data would never have this issue.

I've noted that if I switch off WiFi (with auto date/time on) and send a text message, then about half the time, the clock immediately jumps ahead an hour to "Etc/GMT+7" instead of "Vancouver".

That was leading me to believe it was iOS mooching an errant timestamp off said text messages, but the tech insisted to me that wasn't the case. Rather that iOS is deciding to look for updated time info and can't find it so it just goes with some previous default setting.

My wife has also noticed the same issue on her iPhone 5s (iOS 10.3.4) when not on WiFi, with the same carrier plan. My research tells me that this is not a new problem.

Very odd bug, seems configuration specific but not consistent. We also have two phones on Telus Mobility (full plans), same iOS 14.2. My iPhone SE 2 has no issues at all; automatic time zone locks in correctly with Vancouver. But my wife’s iPhone 8 seems to be unable to get time zone information; instead it shows a spinner most of the time. It will lock on Vancouver for a few moments then go back to spinning. Randomly on occasion it will jump ahead an hour to GMT+7. Using WiFi or cellular does not change this behaviour, nor does sending or receiving texts.

The time zone and time info comes from the cellular network. If you connect to a tower in a different time zone it can result in this error. And you have no control over what tower you connect to if you are near the border of a time zone. You should raise it as an issue with your cellular carrier.

Seems like it is all fixed now. Hasn't happened for 5 days now.

Same here. But a few minutes after turning automatic back on, the time zone switches back incorrectly to GMT+7.

Glitchy intermittent bug! Also having same problem (Vancouver/PST) time zone with "Set Automatically" on. But then, without making any changes in Settings, phone reverted back to correct time zone.

The next time zone is about 600km away in Alberta (from the West coast of BC).

All the issues I'm experiencing are in the Lower Mainland, specifically with the PoCo cell tower (near Coast Meridian/Lougheed).

And the issue only occurs on 2 of the 4 different models of iPhone in the house (not on the SE 1st and 2nd Gen).

I posted on here too, to see if Telus comment

https://forum.telus.com/t5/Mobility-Services/Intermittent-time-Zone-Shift-by-1-hour/td-p/114064