# Formula to count months

#### Glacombe

##### Board Regular
Hello
I have the following formula that counts how many months worked in a fiscal year and not counting holidays and also if worked 10 or more days in the month it will count that month. The formula verifies the start date which is in AJ10 and the end date which is in AK10.

=IF(AND(ISBLANK(AJ10),ISBLANK(AK10)),0,(YEAR(AK10)-YEAR(AJ10))*12+MONTH(AK10)-MONTH(AJ10)-1+IF(NETWORKDAYS.INTL(AJ10,EOMONTH(AJ10,0))>=10,1,0)+IF(NETWORKDAYS.INTL(EOMONTH(AK10,-1),AK10,1)>=10,1,0))

What I am trying to revise this formula is to count if worked half the month to count it. For example if the period would be April 1, 2020 to September 15, 2020, I would like the result of the formula to show 5.5 months instead 6.

#### Glacombe

##### Board Regular
Because the end date is Dec 1, it will not count that month, it will make a full month if the person was working the entire month

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#### JamesCanale

##### Active Member
I meant the start date - what if it started on April 2, would that be a full month? How many work days is a full month? Only from the first?

#### Glacombe

##### Board Regular
Yes the start date if it would be April 2 that would make it a full month thanks

#### Glacombe

##### Board Regular
If they start in the middle of the month, that would make it half a month and also if they end in the middle of the month it would also be a half month

#### Glacombe

##### Board Regular

So that would probably be the IF(NETWORKDAYS.INTL identifying AJ and AK would be and IF(AND or IF(OR for both right?

#### JamesCanale

##### Active Member
So, if the networkdays >=18 you get a whole month, if it's >= 8 you get a half month, and if it's less than that, you get 0:
MrExcelPlayground.xlsm
AJAKAL
104/1/20211/15/20229.5
Sheet16
Cell Formulas
RangeFormula
AL10AL10=IF(OR(AJ10="",AK10=""),"",((YEAR(AK10)*12+MONTH(AK10))-(YEAR(AJ10)*12+MONTH(AJ10))-1)+IF(NETWORKDAYS.INTL(AJ10,EOMONTH(AJ10,0),1)>=18,1,IF(NETWORKDAYS.INTL(AJ10,EOMONTH(AJ10,0),1)>=8,0.5,0))+IF(NETWORKDAYS.INTL(DATE(YEAR(AK10),MONTH(AK10),1),AK10,1)>=18,1,IF(NETWORKDAYS.INTL(DATE(YEAR(AK10),MONTH(AK10),1),AK10,1)>=8,0.5,0)))

You can tweak those values as you see fit in there. You can see two ">=18" and two ">=8".

#### Glacombe

##### Board Regular
Super it works perfectly thank you again James for all your patience

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