JST
Tokyo
AST
Riyadh
Convert JST to AST
Japan Standard Time to Arabia Standard Time — Riyadh is 6 hours behind Tokyo
2:27 AM
Saturday, March 28, 2026
UTC+9
8:27 PM
Friday, March 27, 2026
UTC+3
Quick Facts
Time Difference
-6 hours
JST Full Name
Japan Standard Time
AST Full Name
Arabia Standard Time
JST to AST Conversion Table
JST (Tokyo)
AST (Riyadh)
12:00 AM
6:00 PM(Mar 27)
1:00 AM
7:00 PM(Mar 27)
2:00 AM
8:00 PM(Mar 27)
3:00 AM
9:00 PM(Mar 27)
4:00 AM
10:00 PM(Mar 27)
5:00 AM
11:00 PM(Mar 27)
6:00 AM
12:00 AM
7:00 AM
1:00 AM
8:00 AM
2:00 AM
9:00 AM
3:00 AM
10:00 AM
4:00 AM
11:00 AM
5:00 AM
12:00 PM
6:00 AM
1:00 PM
7:00 AM
2:00 PM
8:00 AM
3:00 PM
9:00 AM
4:00 PM
10:00 AM
5:00 PM
11:00 AM
6:00 PM
12:00 PM
7:00 PM
1:00 PM
8:00 PM
2:00 PM
9:00 PM
3:00 PM
10:00 PM
4:00 PM
11:00 PM
5:00 PM
Related Conversions
About JST and AST Time Zones
JST (Japan Standard Time) is UTC+9 and is the standard time zone for Tokyo. AST (Arabia Standard Time) is UTC+3 and is the standard time zone for Riyadh.
When it's 12:00 PM (noon) in Tokyo (JST), it's 6:00 AM in Riyadh (AST). The time difference between JST and AST is 6 hours.
Use our world clock tool to compare Tokyo and Riyadh with a visual timeline, or browse more timezone conversions.