Current time in Kolkata, India
The current local time in Kolkata is shown below. Kolkata observes IST.
What's the daylight saving status?
Kolkata does not observe daylight saving time. The local offset is fixed year-round.
When are sunrise & sunset today?
What are the timezone facts?
- Timezone
- Asia/Calcutta
- Standard abbreviation
- IST
- Observes daylight saving
- No
- Country
- 🇮🇳 India
- Business hours
- 09:00 – 17:00 local
What's the timezone history of Kolkata?
Kolkata uses Indian Standard Time at UTC+5:30, the single zone applied across the entire country. The IST meridian at 82.5 degrees east passes through the city of Allahabad in Uttar Pradesh, so Kolkata's longitude around 88.4 degrees east places wall time roughly 23 minutes behind mean solar noon. The city was historically the reference point for Indian railway timekeeping under British rule until 1906, when the all-India standard was set midway between the Bombay and Calcutta meridians. The 30-minute offset complicates international scheduling.
What are the working hours in Kolkata?
Banking, the substantial jute and tea trading legacy, IT services growing rapidly in Salt Lake and New Town (Rajarhat), and the Port of Kolkata anchor the working economy. Office hours run 09:30 to 18:00 with shorter lunch breaks than Indian southern cities. The substantial Bengali public-intellectual culture sustains a strong evening commercial sector around College Street and Park Street. Durga Puja in late September or early October closes most businesses for a full week and is by far the city's largest annual calendar event. Bengali New Year (Poila Boishakh) in mid-April is also a significant cultural event.
Where is Kolkata?
Kolkata lies on the eastern bank of the Hooghly River in West Bengal, around 110 kilometres inland from the Bay of Bengal. The city proper holds around 4.5 million residents and the wider metropolitan area reaches approximately 15 million, the third-largest in India. The Hooghly is the western distributary of the Ganges, with the city sitting on the lower delta plain near sea level. The Sundarbans mangrove forests, the largest contiguous mangrove ecosystem on earth, extend south-east toward the Bay of Bengal.