gmt或没有gmt

Question

this might be stupid question, but ill ask anyway.

do i really need to implement gmt on site to get proper timestamp on a post? well im building a site like twitter. my feeds are working fine and showing me the time i need, like it shows "posted 11 minutes, posted yesterday, posted 5 days ago.. " just like this site, so i was thinking it should work for everyone properly, what you think? or do you think i need to implement gmt on it and do you recommand or have any article on it for implementing it proper way?

sorry if this sound stupid :O

Answer 1

It's a good point, but consider the case when 1 day ago suggests "yesterday", and it's currently 1:05am for some user. I suppose if you're using days = hours % 24 rather than days = datediff(then, now).days, then it would work fine.

I think the issue is: how accurate does your site need to be? If it's for medical readings, so someone can know when their medication is due, then yes, you want to account for timezones properly, and give accurate times rather than just "x ago". If it's just for "joe said hi two days ago", though, then it's not a big deal.