Tokyo is 3 hours 30 minutes ahead of Colombo. Colombo uses Sri Lanka Standard Time (SLST, UTC+5:30) while Tokyo uses Japan Standard Time (JST, UTC+9). When it's 12:00 PM in Colombo, it's 3:30 PM in Tokyo.
Neither city observes daylight saving time, so the time difference remains constant year-round.
Best calling time: 5:30 AM - 2:30 PM Colombo time. This corresponds to 9:00 AM - 6:00 PM in Tokyo, covering standard business hours.
Japan has significant investments in Sri Lanka, particularly in infrastructure and development projects. Japan is also a major destination for Sri Lankan workers and students.