I am planning some redemption SQ fights in business class using my VS FC miles to go from BKK to SIN, then connecting late that night to the SQ flight to CPT (which leaves at 0125) next March 2020

May I ask if SQ arrivals at SIN coming from BKK at 0005 or 0040 will be OK for the 0125 CPT connection please?

Or, I could leave BKK at lunch time and perhaps take a quick look at the City, a sling at Raffles?? (never been there)

Cheers
edit just seen there is a free SIA Heritage city tour for SQ pax