Convert 2010-04-16 16:30:00 to "Tomorrow Afternoon" or convert another date to "this afternoon", "next year", "next week wednesday". You get the picture. Anyone know of a PHP or Javascript library that can do this?
I think you can come a long way with what is said here: http://stackoverflow.com/questions/11/how-do-i-calculate-relative-time
The logic is there, and it's not too hard to do the javascript equivalent if a solution in a different language suits you.
There might be more elegant solutions out there (look for Natural language formatting), but personally I couldn't find any.
I would suggest calculating the distance from now
to the date you're formatting, and using thresholds.
Pseudo solution:
diff = now - date
if (diff < one_day)
format for today
if (diff < two_days)
format for tomorrow
if (diff < one_week)
format using days from now
.
.
.
The comparison will work for both past and future dates, as long as you use compare with the abs
value of diff
. Display timeunit ago or timeunit from now by checking if diff
is positive or negative.
For the morning, afternoon, evening etc. you only need to check for the time of day in the date, and regarding the formatting type you hit, either display the time as numbers (far away), or natural language (recent or near date).
From this link -> How do I calculate relative time?
function posted(t) {
var now = new Date();
var diff = parseInt((now.getTime() - Date.parse(t)) / 1000);
if (diff < 60) { return 'less than a minute ago'; }
else if (diff < 120) { return 'about a minute ago'; }
else if (diff < (2700)) { return (parseInt(diff / 60)).toString() + ' minutes ago'; }
else if (diff < (5400)) { return 'about an hour ago'; }
else if (diff < (86400)) { return 'about ' + (parseInt(diff / 3600)).toString() + ' hours ago'; }
else if (diff < (172800)) { return '1 day ago'; }
else {return (parseInt(diff / 86400)).toString() + ' days ago'; }
}
function gett($sam){
$times = time() - $sam;
if ($times == 60){
$times = "a minute ago";
}
if (($times != 1) && ($times < 60) && ($times != 0)){
$times = "$times seconds ago";
}
if ($times == 0){
$times = "less than a second ago";
}
if ($times == 1){
$times = "a second ago";
}
if ($times > 60 && $times < 3600){
$times = ceil($times/60)." minutes ago";
}
if($times == 3600){
$times = "an hour ago";
}
if($times > 3600 && $times < 86400){
$times = ceil($times/3600)." hours ago";
}
if($times == 86400){
$times = "a day ago";
}
if($times > 86400){
$times = ceil($times/86400)." days ago";
}
return $times; }
Usage: $updated = gett($timestamp); where $timestamp is pretty self-explanatory..