City comparison · time difference and converter
Delhi is 11.5 hours ahead of Calgary right now. Calgary sits in Canada on Edmonton; Delhi sits in India on Kolkata. They are roughly 11,080 km apart (6,885 mi), a flight of about 14h 02m. Calgary's metro holds around 1.5 million people; Delhi's around 33.8 million.
Slot 1
00:00 / 11:00
Calgary / Delhi
Partial overlapSlot 2
01:00 / 12:00
Calgary / Delhi
Partial overlapSlot 3
02:00 / 13:00
Calgary / Delhi
Partial overlapEach row is one hour in Calgary. Green rows are inside business hours in both cities; amber means only one side is at their desk; grey rows fall outside business hours in both.
No public holidays in Canada or India this month.
Great-circle distance
11,080 km
(6,885 mi)
Approximate flight
14h 02m
850 km/h cruise + 1h taxi/climb/descent
Jet lag
12h
Roughly 1 day to adjust per timezone crossed
The heatmap gives you the shape of the day. If you need to convert one specific hour — say a customer call or a release window — open the converter with both cities already loaded.
Open in converter →The difference between Calgary and Delhi is not really a number, it's a daily rhythm. Delhi is 11.5 hours ahead of Calgary on the clock today, but the lived version is that Delhi is wrapping up the working day while Calgary is still in the morning, and the overlap people actually use is narrow. That gap, more than the raw offset, is what teams have to design around.
In Calgary, the working day picks up earliest in the financial districts — Calgary's downtown core wakes early and breaks for lunch at the usual hour. The mood in Delhi is its own story: Delhi settles into the evening at the usual hour, with the local commuter pattern setting the pace. If you are scheduling between the two, the heatmap above marks the rows where both patterns line up.
Daylight saving is the other thing to keep an eye on. Canada either observes DST or holds a fixed offset year-round; India either follows its region's DST pattern or stays put all year. When the two changes are weeks apart, the offset between Calgary and Delhi is one hour off the usual for that stretch — a cliff that catches recurring calendar invites unless your calendar app rebases them automatically. Pin the meeting to a city, not an offset, and the tool handles the rest.
For travellers, the 14h 02m flight is the short version of the story. The longer one is jet lag: roughly one day of adjustment per timezone crossed, which means a trip across the 12-hour gap costs about 12 groggy days on each side. Pilots and cabin crew swear by morning sunlight and an early walk; whatever your routine, the wall-clock numbers above are the source of truth for your first morning in the new city.