Singapore is always 2.5 hours ahead of Kolkata. When it's 9:00 AM in Kolkata, it's 11:30 AM in Singapore. India uses IST (UTC+5:30) while Singapore uses SGT (UTC+8). Neither observes DST.
Kolkata is Eastern India's gateway to Southeast Asia with strong business ties to Singapore.
Morning hours work well! 9:00 AM - 3:30 PM Kolkata corresponds to 11:30 AM - 6:00 PM Singapore. IT and trade sectors coordinate regularly.
Kolkata and Singapore are connected by frequent 4-hour flights. Singapore Airlines, IndiGo, and Air India operate daily services.