Time zones are a kitten. That’s all there is to say about that.
For example, I am a UK player who plays on a server located in the USA. For me, dailies reset at 1am, and probably will change when the clocks go back/forward/upside down. Twice now I’ve been caught out on my dailies by them resetting. xD
It would be really helpful and convenient to have a small countdown timer on the monthly and daily pages to show when they reset. That is all.