JST to SGT — Time Zone Converter
Japan Standard Time (JST, UTC+9) covers Japan; Singapore Time (SGT, UTC+8) covers Singapore. In standard time, SGT is 1 hour behind JST. With only a small offset, working hours in Japan and Singapore overlap for most of the day — scheduling is easy. Use the live converter below — it applies today's IANA time zone data, including daylight saving time, and gives you a meeting schedule you can paste straight into email or Slack.
JST to SGT, hour by hour (today)
Frequently asked questions
What is the time difference between JST and SGT?+
Japan Standard Time (JST) is UTC+9 and Singapore Time (SGT) is UTC+8, so in standard time SGT is 1 hour behind JST. Neither zone observes daylight saving time, so this difference is the same all year.
Does JST or SGT observe daylight saving time?+
Japan Standard Time stays on UTC+9 all year — no daylight saving time. Singapore Time stays on UTC+8 all year — no daylight saving time.
What is the best time for a meeting between JST and SGT?+
With only a small offset, working hours in Japan and Singapore overlap for most of the day — scheduling is easy. The converter above highlights office hours in green for both zones, so you can slide to a time that works for everyone.
How do I share a JST to SGT meeting time by email?+
Pick a time in the converter, log it to the Smart Clipboard, and copy it as bullets, a formatted table, or a one-line question — with both JST and SGT times spelled out so nobody has to do the math.