Bittrex for example are explicit
To keep your tokens, you must withdraw your balance before Thursday, January 10, 2019
And the 10 everywhere in the world, you still can withdraw your coins, so there is no bad surprise.
Cryptopia don't say that, and at 0h00 in NZ they delist, while most of countries in the world are still the 9th.
It's a very scammy behavior for their customers.They steal their coins.