Daylight saving and Multi-sync, sync files.

[Giangi]

I'd love to know what it is.

Personally I didn't do anything...

[Giangi]

My 5.1.1 Android Galaxy S4 is on GMT +3, using network provided time.
My Win 7 PC is on UTC +2, set by work administrator.

I'm almost sure that you must have them the same...

[adi7ch]

My 5.1.1 Android Galaxy S4 is on GMT +3, using network provided time.
My Win 7 PC is on UTC +2, set by work administrator.

I'm almost sure that you must have them the same...

Well, that's completely out of my hands, one is my organization administrator and the other is my cellular provider...
Any idea how to match the dates?

[Giangi]

One of them is wrong, IMHO...
Try with the phone, you should be able to disable the sync...

[Bill Irwin]

Back to Standard Time and another 40 GB of data needlessly transferred between Windows 10 (UTC -8) and Android phone (GMT -8) and again on tablet (GMT -8).

After more than five years asking how to fix this I still have to go through this twice a year. Is there no simple instruction for what I need to do? If not, it is a bug and should have been corrected years ago.

[Giangi]

I really do not understand why is not working for you...
Again I didn't had any problems sync my Moto G5 Plus with Windows 10 64bit

[Bill Irwin]

I'm not the only one with the problem. MPE does not handle the semi-annual time shift for some users and does for others. There is a pattern yet to be determined. However, after this many years of no progress, and my move away from a custom ROM to a stock Samsung Galaxy S9+, I see the problem follow me. It's not my phone.

I suspect it's a difference between the way UTC and GMT time is handled. On a recent trip to Europe via Iceland I set calendar events for gate boarding times in UTC 0 zone, not realizing that this zone doesn't shift for Daylight Savings. I should have used GMT +1. My calendar events were an hour early when I arrived in Iceland and my phone updated its time to local.

My phone/tablet and PC use different zones - UTC versus GMT. I'll be copying 40 GB again in March.

[Giangi]

My phone/tablet and PC use different zones - UTC versus GMT. I'll be copying 40 GB again in March.

I'm pretty sure that's your problem: you should have the same zone.
I do have the same zone: CET

[Bill Irwin]

Your PC and phone are using the same time zone offset? CET is the name of a zone, like mine is PDT. Are your devices both using UTC +? or GMT +?.

If this is something I can fix I need FJ to tell me what to do and I've heard nothing to help in five years now.

[Giangi]

Yes, that's what I'm writing to you since long ago...
All my devices are into the same time zone, computers and phones.
For me is "CET", sometime called also "GMT+1" or "UTC+1"

BTW: GMT and UTC are two different ways to say the same thing!

Here you are my Seven config...


...and my phone

[Bill Irwin]

Since Italy observes DLT then you must move from UTC+1 to UTC+2 in the spring and back in the fall. For me it's UTC-8 in the winter and UTC-7 in the summer.

So both your phone and PC have UTC+1 timezone now? There's no GMT zones on your Android device - all UTC?

I know the UK observes DLT as well so they would be UTC+0 in winter and UTC+1 in summer.

All I really know for sure is that MPE doesn't realize my file times have not changed and syncs everything twice a year and I wish I could stop it, but I've never heard anyone provide instructions for fixing this in the more than five years I've been complaining about it.

If it doesn't happen for other Android Windows users who live in a place that observes DLT I'd like to know what's causing this for me. I know others have this issue but I don't know their platforms. It must not be a large portion of the MPE users or I would hope it would have been resolved years ago.

[dc5dd]

Since Italy observes DLT then you must move from UTC+1 to UTC+2 in the spring and back in the fall. For me it's UTC-8 in the winter and UTC-7 in the summer.

So both your phone and PC have UTC+1 timezone now? There's no GMT zones on your Android device - all UTC?

I know the UK observes DLT as well so they would be UTC+0 in winter and UTC+1 in summer.

All I really know for sure is that MPE doesn't realize my file times have not changed and syncs everything twice a year and I wish I could stop it, but I've never heard anyone provide instructions for fixing this in the more than five years I've been complaining about it.

If it doesn't happen for other Android Windows users who live in a place that observes DLT I'd like to know what's causing this for me. I know others have this issue but I don't know their platforms. It must not be a large portion of the MPE users or I would hope it would have been resolved years ago.

When I just started using MPE i noticed this strange problem but it popup very few and far in between but now it is getting ignoring. And if you wasn't aware of the problem it could take a long time to sync or duplicate all the files, this is very bad. I usually don't check since MPE does such a good job of syncing very thing.

Anyway here is what i've noticed. I have my galaxy s8+ set to change to the local time zone that it travels to with me of course. Then when I sync the files it will try to resync all the files and sometimes worst case scenario it will get confused with the timezone change and files modified just before the change and overwrite those with the old version. Beyond that MPE also doesn't handle Daylight savings time correctly since that is also an hour change in time.

The only temp fix is to delete the filesync file and have it cache all the files again. This should be faster than syncing the entire file list.

Hope this helps someone somewhere.

[Giangi]

So both your phone and PC have UTC+1 timezone now? There's no GMT zones on your Android device - all UTC?

Yes, I repeat for the Nth time: ALL my devices ARE into the SAME time zone!
UTC=GMT they are two acronyms for the very same thing!

https://en.wikipedia.org/wiki/Coordinat ... ersal_Time
"Coordinated Universal Time (abbreviated to UTC) is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude,[1] and is not adjusted for daylight saving time. In some countries where English is spoken, the term Greenwich Mean Time (GMT) is often used as a synonym for UTC."

The problem is not into MPE but in the way the file system store the datetime
It's a well know problem in many sync tools when dealing, for example, with a sync between NTFS and FAT
https://www.codeproject.com/Articles/11 ... nd-getting

Beyond that MPE also doesn't handle Daylight savings time correctly since that is also an hour change in time.

https://www.fjsoft.at/forum/viewtopic.p ... 211#120211

[Bill Irwin]

I get that UTC and GMT are both referring to the time at a spot in the UK. What I'm not getting is what I need to do to fix this problem if it's not a bug in MPE.

Your phone and PC have their zones as both UTC or GMT and mine are different. It is the interpretation of this discrepancy that may be causing my issue. I'd like to test that theory but I have no idea how to change one or the other of my devices so that they both have the same designation (UTC or GMT).

There has been so much chatter on this topic over the last five years but not a single instruction on what to do to fix it.

[Giangi]

It is the interpretation of this discrepancy that may be causing my issue. I'd like to test that theory but I have no idea how to change one or the other of my devices so that they both have the same designation (UTC or GMT).

How to change the time zone depends on the OS, Google is your friend...
Here you are an example for Win10 https://www.tenforums.com/tutorials/640 ... -10-a.html
For Android: https://support.google.com/android/answer/2841106?hl=en

In the the link I've copied in the previous post there is a list of steps I did long ago on my devices.

[Bill Irwin]

I have known how to set or change the time zone for my devices for many years. What I'm trying to do is have all devices set to either UTC or GMT, not PC = UTC-8 and Android = GMT-8.

If both your Windows and Android are the same UTC/GMT then it must be possible.

Did you actually implement a "solution" from this article?
https://www.codeproject.com/Articles/11 ... nd-getting

This looks like I'd have to hack the source code of some Windows 10 functions. I would expect that the Windows side of MPE would deal with this issue and not require its users to have long forum discussions over several years only to realize the solution is to roll up their sleeves and dive into code modification(s).

[Giangi]

What I'm trying to do is have all devices set to either UTC or GMT, not PC = UTC-8 and Android = GMT-8.

If both your Windows and Android are the same UTC/GMT then it must be possible.

... I gave up... English is not my language...

It doesn't matter if UTC or GMT, it's the same thing... You only have to set the SAME time difference "-8"
Look better at my screen shots: Windows "call it UTC" and Android "GMT", so mine have two different "names" but have the same time difference, "+1"

[Bill Irwin]

It would be nice to fix this bug.

No bug, just a settings problem.

A settings problem that is solved how?

If this is just a settings problem can you, or anyone, tell us how to fix it? Is it fixable by someone without source code?

This mass recopying is wanting to take place again - for the 8th or 10th time. The MPE window shows file time on phone as exactly one hour earlier than time on Windows. If I change my time zone in Windows from Pacific to Mountain - one hour ahead - both times jump ahead an hour when I run a file sync in MPE and still want to sync. MPE is not ignoring a one hour time difference. Where is that set? I can't find it.

I find it astounding that in almost ten years of dealing with this twice each year all I've heard is, "It's not a bug but a settings issue", without any explanation of what to do.

[Giangi]

Jesus... 3 pages for the same question and again you will get the same answer:

You must be sure that BOTH the phone and the pc with MPE running are on the SAME time zone.

That's it... it works... https://www.fjsoft.at/forum/viewtopic.p ... 211#120211

I have just done a sync, the first after DayLight change and the sync took less than 10 seconds!!!

A folder on the pc before the sync


The same folder from MPE view, of course the time is different due to the FAT32 way of handling DST


An extract from MPE's log, clearly written about DST change! Only THREE files to download...


The same folder on the pc after the sync



...if you pay me the flight, hotel, food and any extras I may come to setup both your phone and computer correctly...

Other than this there is anything me or anyone else can do...

[Bill Irwin]

Giangi:

Thank you for taking the time to provide the evidence that you are not suffering from this issue. The three pages of this thread, over many years, have convinced me that there are very few people with this issue. I have explained that my Android 10 phone is GMT -08:00 and my Windows 10 PC is set at UTC -08:00 and I continue to experience this mass copy twice a year.

I have heard that the problem is caused by the way a FAT filesystem stores the date but without any suggestion of a way to resolve this.

When I am reviewing a potential sync I see exactly one hour time difference, which I've read is supposed to be ignore by MPE, but is not for me.

Although I would love to meet you at a time when international flights don't require a quarantine period, what would be more useful is a precise description of what you would do if you were sitting with my PC and phone to fix this. I have spent 40+ years in IT working with computer configurations and I have developed proficiency in following instructions.

So, imagine you are at my desk. What - exactly - would you do to a PC that's set at UTC -08:00 and a Galaxy S9+ that's set to GMT -08:00?