Extend the issue out, when I want to call my mother around the world, how do I know she's not ill today, took the day off and went to bed early? You're creatin

Extend the issue out, when I want to call my mother around the world, how do I know she's not ill today, took the day off and went to bed early? You're creating an issue by extending something to absurdity. Specifics like that aren't going to be communicated with any system, but removing timezones removes the general idea that is communicated with 9am or 7pm.