Singapore is 7 hours ahead of Zurich. Singapore uses Singapore Standard Time (SGT, UTC+8) while Zurich uses Central European Time (CET/CEST, UTC+1/+2). When it's 12:00 PM in Zurich, it's 7:00 PM in Singapore.
Singapore does not observe daylight saving time, while Switzerland does. During European summer time (late March to late October), the difference is 6 hours.
Best calling time: 3:00 PM - 6:00 PM Singapore time. This corresponds to 8:00 AM - 11:00 AM in Zurich, catching morning business hours.
Singapore and Zurich are both major financial centers. Swiss banks have significant presence in Singapore, and direct flights connect them in about 12 hours.