What UTC+3:30 means
A clock set to UTC+3:30 shows UTC plus 3 hours 30 minutes. When it is 12:00 noon UTC, it is 3:30 pm here. Compared with India (UTC+5:30) it is 2 hours behind.
Converting to and from UTC+3:30
To turn UTC into this time, add 3 hours 30 minutes. To go back to UTC, subtract the same amount. Three examples: 6:00 am UTC is 9:30 am here; 3:00 pm UTC is 6:30 pm here; 9:00 am here is 5:30 am UTC. The calendar date changes whenever the sum passes midnight.
Where UTC+3:30 sits on the map
The Earth turns 15 degrees of longitude every hour. The line where the sun-time matches UTC+3:30 exactly is 52.5° east. This offset is not a whole number of hours. Places choose a half or quarter hour when a whole hour would leave their clocks too far from their own sun-time. In this data only one zone area with a town of 15,000 or more uses it: Tehran, at 51.4° east.
Who is on UTC+3:30, and when
1 zone area in 1 country keeps UTC+3:30 through the whole year. The towns of 15,000 or more there hold about 50 million people (GeoNames figures). Nobody moves on to or off this offset during the year, so the list below is the same in every season.
Noon at UTC+3:30 elsewhere
When a clock on UTC+3:30 shows 12:00 noon, it is 2:00 pm in India; 8:30 am in London in January and 9:30 am in July; 3:30 am in New York in January and 4:30 am in July; 5:30 pm in Tokyo. For any other place or date, use the converter.
Largest cities on this time
Tehran, Mashhad, Isfahan.
All year
These places keep UTC+3:30 through the whole year.
Neighbouring offsets: UTC+2, UTC+3, UTC+4, UTC+4:30. All UTC offsets.