Government offices and shops are usually open Monday to Friday from 09:30 to 17:30. Some of them may be open on Saturday for half day, but all are closed on Sunday.
Generally, corporate offices operate five-days a week, with Saturdays and Sundays off from 09:30 – 18:00 hrs.
Post offices are open on weekdays, Monday to Friday from 10:00 to 17:00, and on Saturday for half day that is from 10:00 until about 12:00. The main post offices may have longer hours.
Banks are open on weekdays, Monday to Friday from 10:00 to 14:00 for public dealings, and on Saturday, 10:00 to 12:30.
Restaurants and bars have varied closing hours depending on the legally enforced timings in different states. Though in most parts of India, they are usually open until 23:00, while nightclubs and discos close by midnight. The food establishments that are legally open 24 hours a day are coffee shops in five-star hotels.
Shops do not have any standard timing but mostly close by 20:00. Before setting out for shopping, do remember to check the closing days. In many states the shops are closed on Sundays, while in Delhi, many shops close on a particular weekday and remain open on Sundays. In major metros, you may find malls and department stores open all seven days until 20:00 hours
Most of the museums in India are closed on Mondays and Site Museums near archaeological monuments are closed on Fridays.