Singapore is 2 hours and 30 minutes ahead of Colombo. When it's 12:00 PM in Colombo, it's 2:30 PM in Singapore. Singapore uses Singapore Standard Time (SST, UTC+8), while Colombo uses Sri Lanka Standard Time (SLST, UTC+5:30).
Neither location observes daylight saving time, so the 2.5-hour difference remains constant throughout the year. Sri Lanka is one of the few countries using a half-hour offset timezone.
Optimal calling window: 11:30 AM - 8:30 PM Singapore time (9:00 AM - 6:00 PM Colombo time). The moderate time difference allows for comfortable overlap during business hours.
Singapore has a significant Sri Lankan diaspora community, and there are strong business ties in sectors like tea trade, textiles, and IT services between the two countries.