Mumbai
Tokyo
Convert IST to JST
India Standard Time to Japan Standard Time — Tokyo is 3.5 hours ahead of Mumbai
Quick Facts
Time Difference
+3.5 hours
IST Full Name
India Standard Time
JST Full Name
Japan Standard Time
IST to JST Conversion Table
Related Conversions
About IST and JST Time Zones
IST (India Standard Time) is UTC+5:30 and covers cities like Mumbai, Delhi, Bangalore. JST (Japan Standard Time) is UTC+9 and covers cities like Tokyo, Osaka, Kyoto.
When it's 12:00 PM (noon) in Mumbai (IST), it's 3:30 PM in Tokyo (JST). The time difference between IST and JST is 3.5 hours — Tokyo is ahead of Mumbai.
The best meeting window is 0.5:00 PM–5:00 PM IST (9:00 AM–1.5:00 PM JST).
Use our world clock tool to compare Mumbai and Tokyo with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between IST and JST?
Tokyo (JST) is 3.5 hours ahead of Mumbai (IST). The offset is +3.5 hours.
Is JST ahead or behind IST?
JST is 3.5 hours ahead of IST. IST is UTC+5:30 and JST is UTC+9.
When it's 12:00 PM in Mumbai, what time is it in Tokyo?
When it's 12:00 PM (noon) in Mumbai (IST), it's 3:30 PM in Tokyo (JST).
When it's 5:00 PM in Mumbai, what time is it in Tokyo?
When it's 5:00 PM in Mumbai (IST), it's 8:30 PM in Tokyo (JST).