# PHP: Calculate Real Differences Between Two Dates or Timestamps - Comment Page: 9

I was using simple function to calculate difference between two dates and timestamps until I noticed, it's not working correctly in long intervals. It's very easy to calculate difference between two timestamps in seconds, but it's much more complicated print difference in human readable format. The Internet can be found in a wide range of ways to do this thing, but as a rule they use a fixed amount of seconds for the year and the month. So if we calculate year with using 365 or 365.25 days and month using 30 or 31 then the difference is not accurate, because of leap years, DST (Daylight Saving Time) and so on.
Because of this problem, I decided to make a function (at least in the short...

sanbThanks (Y)

;)

danskhi..nice work and thanks for sharing…i would like to know how to translate the month days year into another language

boosoohi how can i translate years months days etc.. in another language please ?

Daniel WolfSee my gist, it allows to add translation: https://gist.github.com/danielwolf1/cb0516fc6c180c4106c0

Marcel EppCan’t get it to work. Can you please explain how to use it?

vinothkumarThanks for your perfect difference of dates.

Marcel EppAnd what is if one of the two dates have a null in the database?

JRHi Marcel Epp,

If you have nulls in database, then you have to handle that case, like:

Marcel EppThank you very much!!!

it worked perfectly!!!

Marcel EppHi,

it’s me again. How can get an output like

00:12:39?

I have to put more of these outputs together to get the time from all.

Station1 = 00:01:20

Station2 = 00:02:15

Station3 = 01:34:10

all togehter = 01:37:45

JRHi,

This function doesn’t do it, but you can try to convert all

hours, minutes and seconds to secondsand convert total sum of seconds back to hours, minutes and seconds.Example:

Marcel EppThank you again!!!

This helped me a lot!!!

AlessandroHello! I’m using your function for a date difference and works very well, but I must add another variable is an extratime in minutes. Is there any way to use your function for doing this operation?

Example:

Start : 14/09/2015 10:03:05

Suspension for x minutes: from 14/09/2015 11:04:39 for 27 minutes

Stop : 14/09/2015 11:14:02

Result: 1 hour and 11 minutes

Instead I need 1 hour and 11 minutes – 27 minutes = The real time worked.

thank you in advantage

JRHi Alessandro,

Here is one possible way, if you can convert that suspension time to seconds:

David J EddyUpdated the function a bit and added it as a Gist on Github:

https://gist.github.com/davidjeddy/362ff2565b1af1259e12

Muhammad ShahzadGood Script, Thanks Bro

FreddyThanks for script, can i reblog this for indonesian programmers especially codeignter lovers ! my blog is here http://www.sidaurukfreddy.com

Muhammad ShahzadFor example

6 years

19 years

2 months

6 years, 2 months

5 years

Total=?? how to add total year?

it is output in loop, mean one person have experience in different period then how to find total year experience?

freddyHello Muhaammad, each diff date you should put in avariable then count it,

KristianHey I really like this function but If I need to only display the different hours between working hours, how would I do that,

I’m think something like this, but The interval loops got me a little confused, I know this try to increment start from year but I always need to know if the time is in working hours.

$time = date(“Hi”, strtotime(‘+’.$num.’ minutes’));

$day = date(“D”, strtotime(‘+’ . $num . ‘ minutes’));

if($day != ‘Sat’ && $day != ‘Sun’ && $time >= 800 && $time <= 1800)

{

Could you help please?

parmThanx Man! Love you…you save my day….you are best one

abofhdx5great work,

i want ask about if i need output in Second , or minute ?

i dont need hours ,

for example :

In : 12:00

out : 1:05

dateDiff = 65 Minutes

rodneyThank you for this post it helps a lot,