Timezone change in auction

[Matea07]

First of all i already get help by a mod/staff from discord but still need to report this as it can confuse other players too. 

I auction a pokemon which first use my timezone(+5:30/Indian Standard time) i have a few ss if needed (i auction 3:47pm but actually not the exact time but, can proof from the bid and clock on the ss) but the forum time changes to other timezone suddenly when around 2 days left and displays as i auction around 4:30 am, this is a little bit confuse and if i got some bid on late i can give away the pokemon to the wrong person, as a friend of mine got banned from the same issue. Like is there a way to use only a timezone of my device of even forum timezone from the start so that no one is confuse later. this is my post btw the first ss shows that it uses my device timezone, second ahows it suddenly chabges to other timezone