Yes, Mumbai is 30 minutes ahead of Colombo year-round. When it's 9:00 AM in Colombo, it's 9:30 AM in Mumbai. Neither country observes daylight saving time.
Mumbai operates on India Standard Time (IST, UTC+5:30), while Colombo uses Sri Lanka Standard Time (SLST, UTC+5:30). Note: Sri Lanka changed to UTC+5:30 in 2006, matching India's timezone.
All business hours align perfectly! With just a 30-minute difference, 9:00 AM - 6:00 PM in either city overlaps almost completely with the other.
Mumbai and Colombo share close geographic and cultural ties. Air India and SriLankan Airlines operate multiple daily flights. Strong connections exist in trade, tourism, and the significant Sri Lankan Tamil community in India.