9am in Singapore is 2am in London

When it’s 9am in London, it’s 5pm in Singapore. Singapore is 8 hours ahead London. London observes daylight saving time but Singapore does not, so the gap shifts by one hour during clock changes. The best time to schedule calls between the two cities is 9am to 10am London time (which is 5pm to 6pm in Singapore). With a large gap separating these two business hubs, most cross-city calls require one team to work outside standard hours. In practice, teams in London tend to take early-morning calls to reach Singapore during standard afternoon hours, while Singapore counterparts can schedule near end of day. Having a standing calendar slot for cross-city calls reduces back-and-forth over scheduling and keeps projects moving efficiently.