What a silly argument. "I want to call and it's 4:25am there". Except, how did you find out what time it was there in the first place? You googled " current tim

What a silly argument. "I want to call and it's 4:25am there". Except, how did you find out what time it was there in the first place? You googled " current time in Sydney". No one memorizes UTC offsets for every time zone (especially not the weird 30 minute ones). They look it up. For example, my brother lives in Japan. When we talk I often ask what time it is there and what the offset is. I don't remember it and do the math in my head. Without timezones I would know what time it was in Japan but I still wouldn't know if it was night or day. But I could go look it up the same way, "daytime hours for Sydney". This whole argument is based on the premise that I know what time it is somewhere else, which is silly, because you still have to look it up.