News says retirement is on 21st March. Does that mean 21st at midnight-ish Subeta time or does that mean you still have the whole of the 21st to buy before retirement?

retirements that I have seen and experienced happen whenever they feel like it. sometimes at dawn, sometimes some time in the middle of the day, and sometimes at midnight.. I'd plan ahead, if it were me.

Yeah, they're kind of random like said. It's best to play it safe and finish the day before if you can.

I try to do them closer to the end of the day when I do them!