Ok, with problems in Kathmandu SQ have moved my SIN - KTM flight 4 hours earlier next Wednesday. It was always tight in SIN with a 1 hr 30 connection after my SYD - SIN flight but now it leaves 2.5 hours before I arrive. This is a Virgin redemption on one PNR, in J.

How flexible are SQ going to be on this?. I’m retired and do have a day up my sleeve before my tour starts so could go up to SIN on the 17th overnight then to KTM next day.
Alternatively could go up to SIN a day early (unfortunately no flights arrive early enough for KTM departure time) and take that rescheduled KTM flight.

So, I guess looking for feedback on how flexible SQ will be on this.