Need to find difference in minutes using two timestamp fields

[praveenkumar_s]

Hi friends,

I just need to find the difference between two timestamp columns by minutes and also i have to remove seconds . Any suggestion would be really helpful.

eg: jan 12,2017 11:27:28 PM and jan 12,2017 11:37:22 PM

Actual answer using interval function including seconds: 9 minutes

Expected answer : 10 minutes (remove seconds and have to find difference)

[sunny_talwar]

May be this

=Interval(Round(TimeStamp2 - TimeStamp1, 1/(24*60)), 'mm')

[praveenkumar_s]

i have used your script, its working fine. but for some of the field it shows incorrect value as attached with highlighted by red box.

first red box it should show as -03

second red box it should show as 03

[sunny_talwar]

1st of all, are you rounding to the nearest minute or ceiling or flooring? 2nd, are you doing rounding/ceiling/flooring before subtraction or after?

[praveenkumar_s]

Sunny,

i don't want to round off minutes. i want to remove seconds . eg-  01:55 sec to 01 min ,  02:25 sec to 02 min . like that i needed. consider, all the seconds value to 00. then it will come correctly.

[sunny_talwar]

That means you are flooring ....

You can try this

=Interval(Floor(TimeStamp2 - TimeStamp1, 1/(24*60)), 'mm')

or this

=Interval(Floor(TimeStamp2, 1/(24*60)) - Floor(TimeStamp1, 1/(24*60)), 'mm')

[praveenkumar_s]

sorry. the expression you give will not give accurate result. if 1:00:00 and 1:03:38 will give -04 but i want -03.

[sunny_talwar]

Try this

=Interval(Floor(Round(TimeStamp2, 1/(24*60*2)), 1/(24*60)) - Floor(Round(TimeStamp1, 1/(24*60*2)), 1/(24*60)), 'mm')

[praveenkumar_s]

thanks for your continous effort, but still its not comming

for jan 20,2017 8:16:52 and jan 20,2017 8:15:30 , it shows 2, but i want 1. instead of floor and ceil function i just want to replace seconds with '00' like jan 20,2017 8:16:52 as jan 20,2017 8:16:00 and jan 20,2017 8:15:30 as jan 20,2017 8:15:00 , then we can do the calculations.

[rwunderlich]

Sunny, did you mean Ceil instead of floor?

=Interval(Ceil(TimeStamp2 - TimeStamp1, 1/(24*60)), 'mm')