Calculate percentage of time period

Cell A1 shows prison time for a certain crime (eg. 8 years).
How would cell B1 show 1/5 (20%) of that in time format (ie, not 1,6; but 1
"year" 7 "months").
I suppose I want a duodecimal system instead of a decimal one...
Thanks in advance.

See

http://www.cpearson.com/excel/datedif.htm

--
Kind regards,

Niek Otten

"Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote in
message news:BC84E14C-2DD4-4176-B97C-D2679156B088@microsoft.com...
> Cell A1 shows prison time for a certain crime (eg. 8 years).
> How would cell B1 show 1/5 (20%) of that in time format (ie, not 1,6; but
> 1
> "year" 7 "months").
> I suppose I want a duodecimal system instead of a decimal one...
> Thanks in advance.

Sorry, I'm getting no results. The formulas you indicated start with a date
and I'm working with "time quantities", like 8 years, 20 years, etc., which
will be greater or lesser in some percentage. Is what I’m saying
understandable?

"Niek Otten" escreveu:

> See
>
> http://www.cpearson.com/excel/datedif.htm
>
> --
> Kind regards,
>
> Niek Otten
>
> "Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote in
> message news:BC84E14C-2DD4-4176-B97C-D2679156B088@microsoft.com...
> > Cell A1 shows prison time for a certain crime (eg. 8 years).
> > How would cell B1 show 1/5 (20%) of that in time format (ie, not 1,6; but
> > 1
> > "year" 7 "months").
> > I suppose I want a duodecimal system instead of a decimal one...
> > Thanks in advance.
>
>
>

Take 1-1-1900 as a starting point. That is represented in Excel as the
number 1. So Jan 2 1900 is number 2. etc.
Small error: Excel treats 1900 as a leap year. Forget that; hardly any
effect on your calculations.
So 8 years would be 1-1-1908, the number 2923. 80% of that would be May 26
1906; the number 2338.4
If you want to express that in years, months and days, look here:

http://www.cpearson.com/excel/datedif.htm

--
Kind regards,

Niek Otten

"Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote in
message news:46BEFD94-048F-4AE6-8442-B074CB1CFF1F@microsoft.com...
> Sorry, I'm getting no results. The formulas you indicated start with a
> date
> and I'm working with "time quantities", like 8 years, 20 years, etc.,
> which
> will be greater or lesser in some percentage. Is what I'm saying
> understandable?
>
> "Niek Otten" escreveu:
>
>> See
>>
>> http://www.cpearson.com/excel/datedif.htm
>>
>> --
>> Kind regards,
>>
>> Niek Otten
>>
>> "Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote
>> in
>> message news:BC84E14C-2DD4-4176-B97C-D2679156B088@microsoft.com...
>> > Cell A1 shows prison time for a certain crime (eg. 8 years).
>> > How would cell B1 show 1/5 (20%) of that in time format (ie, not 1,6;
>> > but
>> > 1
>> > "year" 7 "months").
>> > I suppose I want a duodecimal system instead of a decimal one...
>> > Thanks in advance.
>>
>>
>>

I'm afraid it's a dead end. Even the simplest DATEDIF formulas give an error.
Thanks anyway.

"Niek Otten" escreveu:

> Take 1-1-1900 as a starting point. That is represented in Excel as the
> number 1. So Jan 2 1900 is number 2. etc.
> Small error: Excel treats 1900 as a leap year. Forget that; hardly any
> effect on your calculations.
> So 8 years would be 1-1-1908, the number 2923. 80% of that would be May 26
> 1906; the number 2338.4
> If you want to express that in years, months and days, look here:
>
> http://www.cpearson.com/excel/datedif.htm
>
> --
> Kind regards,
>
> Niek Otten
>
> "Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote in
> message news:46BEFD94-048F-4AE6-8442-B074CB1CFF1F@microsoft.com...
> > Sorry, I'm getting no results. The formulas you indicated start with a
> > date
> > and I'm working with "time quantities", like 8 years, 20 years, etc.,
> > which
> > will be greater or lesser in some percentage. Is what I'm saying
> > understandable?
> >
> > "Niek Otten" escreveu:
> >
> >> See
> >>
> >> http://www.cpearson.com/excel/datedif.htm
> >>
> >> --
> >> Kind regards,
> >>
> >> Niek Otten
> >>
> >> "Ricardo Monteiro :^)" <RicardoMonteiro@discussions.microsoft.com> wrote
> >> in
> >> message news:BC84E14C-2DD4-4176-B97C-D2679156B088@microsoft.com...
> >> > Cell A1 shows prison time for a certain crime (eg. 8 years).
> >> > How would cell B1 show 1/5 (20%) of that in time format (ie, not 1,6;
> >> > but
> >> > 1
> >> > "year" 7 "months").
> >> > I suppose I want a duodecimal system instead of a decimal one...
> >> > Thanks in advance.
> >>
> >>
> >>
>
>
>