When I select the Asia/Calcutta timezone as default, the time shown in longview graphs is off by half an hour.
It seems as if longview is taking the offset as GMT+5 whereas it is actually GMT+5.5

For example, right now its 11:21 IST / 5:51 GMT
If I change the default timezone under my profile to GMT / UTC
The longview graph shows the last event as "Oct 19, 05:45:00"
If I set the default timezone as Asia/Calcutta
The longview graph shows the last event as "Oct 19, 10:45:00".
It should have shown the time as "11:15:00"

This problem does not exist in the other sections of the website (for example Linode graphs have correct time shown).