How is relocating to another palace a calendar event? They literally just wake up that morning grab their cellphones and drive to another palace.
I may be very wrong as I know little about the DRF, but I think the relocation comes with some sort of pomp and ceremony? Like in older times when monarchs would move residence depending on the seasons. How that applies during a pandemic I'm not sure- heck even my first suggestion may be wide off the mark!! On the website there's usually a page when QMII has moved residences, I can't recall if there's a flag handing-over ceremony or guard changing ceremony or something.