Work out the percentage of the day that has elapsed

Question

Slightly strange question, but hopefully someone can help.

In essence, if the time was 12pm the the elapsed percentage would be 50%, 6am would be 25% and 16pm would

Answer 1

Assuming you can get the current time of day, it'd be pretty easy to calculate the percentage of the day elapsed.

percentage = (hours / 24 + minutes / (60 * 24)) * 100

Answer 2

The accepted answer bugs me for many reasons including the relationship to a real life calendar. Personally, I would probably do this:

<?php
$start = strtotime("today");
$end = strtotime("tomorrow");
$now = time();
$secondstoday = $end - $start;
$secondselapsed = $now - $start;
$percentage = ($secondselapsed / $secondstoday ) * 100;

printf('%.2f%% of the day has passed (%d out of %d seconds)', $percentage, $secondselapsed, $secondstoday);

result:

72.22% of the day has passed (62402 out of 86400 seconds)

You could then extend it even further by making a function and changing the range from "today" and "tomorrow" to something else.

Answer 3

gettimeofday(true) returns the number of seconds elapsed since midnight as a float (I think), so you want: gettimeofday(true)/(60*60*24). Multiply by 100 to get a percentage.

EDIT: Actually, gettimeofday returns the number of seconds elapsed since the start of the epoch, so you need to subtract midnight:

$midnight = strtotime('00:00');
$epochseconds = gettimeofday(true);
$timeofdayseconds = $epochseconds - $midnight;
$timepercent = $timeofdayseconds/(60*60*24)*100;

Answer 4

24hours are 100% so 24/currentTime = result 100 / result = % ;)

Answer 5

I dont know php but is there any way to get the current date witch i guess :P can you extract the hours out of this or minutes how exact do you want it to be?, Current hours/24 * 100 :P current minutes/1440 * 100