From
IST
Time Converter
IST to AST Time Converter
Convert India Time to Atlantic Time with a live clock and clean permalinks.
To
AST / ADT
When it is 7:30 AM in India Time, it is 11:00 PM in Atlantic Time.
IST to AST at a glance
Atlantic Time is 8 hours 30 minutes behind India Time. If someone gives you a time in India Time, move the clock by 8 hours 30 minutes to read it in Atlantic Time. A 9:00 AM start in New Delhi becomes 12:30 AM in Halifax.
What India Time covers
India Time is used across all of India. It stays fixed year-round and is one of the most common South Asian reference clocks. It is widely used for offshore work, product teams, support operations, and engineering handoffs.
What Atlantic Time covers
Atlantic Time is used in eastern Canada and parts of the Caribbean. Halifax is a common city reference for it. It matters when scheduling across North America and island markets farther east.
Quick answers
What is the time difference between IST and AST?
Atlantic Time is 8 hours 30 minutes behind India Time.
What happens to a 3:00 PM meeting in IST?
It lands at 6:30 AM in AST.
Does daylight saving time matter for IST to AST?
India Time and Atlantic Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.