Time zone converter
IST to AST
Convert India Time — Mumbai to Arabia Time — Riyadh — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Mumbai, it's 6:30 AM in Riyadh. Riyadh is 2½ hours behind Mumbai. Use the converter above to turn any IST time into AST, or scan the hour-by-hour table below for the full day.
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India Time — Mumbai ·
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Arabia Time — Riyadh ·
Convert a specific timein Mumbai → — in Riyadh
IST to AST at a glance
9:00 AM IST
6:30 AM
AST · Riyadh
12:00 PM IST
9:30 AM
AST · Riyadh
5:00 PM IST
2:30 PM
AST · Riyadh
Planning a meeting between Mumbai and Riyadh
Planning a call between Mumbai and Riyadh? The best overlap during a standard 9-to-5 workday runs 11:30 AM–5:00 PM IST (9:00 AM–2:30 PM AST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Mumbai to Riyadh
A full day mapped from IST to AST.
Frequently asked
Is Riyadh ahead of or behind Mumbai?
Riyadh is 2½ hours behind Mumbai.
What is 12:00 PM IST in AST?
12:00 PM in Mumbai is 9:30 AM in Riyadh.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so IST and AST automatically reflect the correct daylight-saving offset for the current date.