Until Sunday I thought I understood how to set up locations and DST rules but now I’m not so sure anymore:
CM5.2, switch is in the US, server time zone is ‘central’ and DST rule 1 is set for US.
This system also serves locations in India, 11:30 ahead of CST – or +10:30 during DST (India doesn’t observe DST).
Their locations were set up with +10:30 and no DST rule and apparently this showed the correct time on their phone before Sunday.
After changing back to Standard Time on Sunday, phones in India were one hour behind. This makes sense because the offset was set to only +10:30 when it should have been +11:30. I changed their location to +11:30 and it resolved the issue.
What I don’t understand is why did it show the right time on their phone before Sunday when their location was set to a +10:30 offset and DST rule 0. It should have given the wrong time then.
One thing to note is – and I’m not sure if this made a difference – that this system was installed during DST. Does that really matter? Does it need to go from DST to Standard time once to do location offset and local DST rules correctly? We have several other systems (older ones) and they did everything correctly, for all the different locations they host.
Regards
fsi
CM5.2, switch is in the US, server time zone is ‘central’ and DST rule 1 is set for US.
This system also serves locations in India, 11:30 ahead of CST – or +10:30 during DST (India doesn’t observe DST).
Their locations were set up with +10:30 and no DST rule and apparently this showed the correct time on their phone before Sunday.
After changing back to Standard Time on Sunday, phones in India were one hour behind. This makes sense because the offset was set to only +10:30 when it should have been +11:30. I changed their location to +11:30 and it resolved the issue.
What I don’t understand is why did it show the right time on their phone before Sunday when their location was set to a +10:30 offset and DST rule 0. It should have given the wrong time then.
One thing to note is – and I’m not sure if this made a difference – that this system was installed during DST. Does that really matter? Does it need to go from DST to Standard time once to do location offset and local DST rules correctly? We have several other systems (older ones) and they did everything correctly, for all the different locations they host.
Regards
fsi
