I found Google extremely useful for timezone info. You can write something like "what time is it in Detroit, USA When it's 1pm in Sydney, Australia", or "what t

I found Google extremely useful for timezone info. You can write something like "what time is it in Detroit, USA When it's 1pm in Sydney, Australia", or "what time is it now in Baghdad" and it will give you the correct answer. No need to be counting hours etc. As for "are they awake". I'm not sure it is as useful as "are they off work now"?