> Both are not hard to implement. But exact timestamp has a timezone problem
Specify a timezone in the timestamp. UTC is probably fine, especially if you are doing both, in which case, the main value of timestamps (AFAICT) is to compare the relative times of other posts that are hard to determine from the prose descriptions.
Brilliant! I've been using timeago (http://timeago.yarp.com), but Moment.js (especially with its timezone support) may solve some of my problems better.
Specify a timezone in the timestamp. UTC is probably fine, especially if you are doing both, in which case, the main value of timestamps (AFAICT) is to compare the relative times of other posts that are hard to determine from the prose descriptions.