When it’s noon in Yokohama, Singapore clocks read 11:00. That gap never moves. No daylight saving. No seasonal shuffle. Just a fixed one-hour offset, year after year.
JST vs SST: only 1 hour apart
Yokohama runs on Japan Standard Time (JST), UTC+9. Singapore uses Singapore Standard Time (SST), UTC+8. Neither city observes daylight saving time. The 1-hour difference is constant. If you schedule a meeting for 10:00 in Yokohama, it’s 9:00 in Singapore every single day of the year.
What’s the best time for a Yokohama, Singapore call?
Book it for 10:00 Yokohama time. That’s 9:00 in Singapore. Both sides are at their desks. The overlap window is wide open from 9:00 to 17:00 in either city, but the sweet spot is the morning block.
Want a second option? Try 14:00 Yokohama time. That’s 13:00 in Singapore. Lunch is over on both ends.
Skip 12:00 Yokohama time. That’s 11:00 in Singapore. Your Singapore colleague is still an hour away from lunch. Your Yokohama team is walking out the door. You’ll lose one side.
Skip 17:00 Yokohama time. That’s 16:00 in Singapore. Technically still working hours, but attention is fading. Morning calls close decisions faster.
Is Singapore always 1 hour behind Yokohama?
Yes. Always. The offset is fixed at UTC+9 for Yokohama and UTC+8 for Singapore. Neither city has ever observed daylight saving time. Japan’s last DST experiment ended in 1952. Singapore sits near the equator and has no use for it. The gap does not change in January, July, or any other month.
Flight time from Yokohama to Singapore
A direct flight from Tokyo Narita or Haneda to Singapore Changi takes about 7 hours. Yokohama is roughly 90 minutes from Narita by train or limousine bus. Door-to-door: 9 to 10 hours.
Jet lag is minimal. The 1-hour difference means your body clock barely notices. Arrive, eat a meal at the local time, and go to sleep.
When does the Yokohama, Singapore overlap break?
It doesn’t. The overlap is near-perfect. The only friction point is the lunch gap.
Yokohama’s lunch hour is typically 12:00 to 13:00 JST. That’s 11:00 to 12:00 SST. A call set for 12:30 Yokohama time lands in the middle of Singapore’s morning work block, while your Yokohama contact is away. Move it to 14:00 Yokohama time (13:00 Singapore) and you catch both sides after their break.
For traders, remote teams, and frequent flyers, the 1-hour difference is a non-issue. Yokohama is ahead. Singapore is behind. The overlap is as good as it gets.