# [mso] Re: How can I enter Hours and minutes in excel 2007

• From: "David Smart" <smartware@xxxxxxxxxxxxxxx>
• To: <mso@xxxxxxxxxxxxx>
• Date: Tue, 9 Nov 2010 22:06:12 +1100

```> E.g. 3 Hrs 45 mins shows as 10:48. But 10.48 what

Don't know what you mean here.  "3 Hrs 45 mins" is not a valid time input
into Excel.  How exactly did you enter this value?

OK, I think you might have entered 3.45 (this is a three then a full-stop
then a four and then a five).  This does indeed show 10:48 if the formatting
is hh:mm.

3.45 is 3.45 DAYS, which is 3 days, 10 hours and 48 minutes.  But you've
instructed it only to show you hh:mm so you don't see the date part of this
date field.  The actual value is 10:48 on 3rd January 1900.

Date time fields are floating point numbers.  1 is one day; 0.5 is 12 hours;
0.45 is 10:48.  0 is 0th January 1900 which is the base date for Excel.

Hours and minutes are entered using a colon as a separator, not a decimal
point.

3:45 (i.e. with a colon) is indeed 3 hours and 45 minutes.

Regards, Dave S

----- Original Message -----
> On Mon, Nov 8, 2010 at 3:17 PM, mikebreen <mikebreen@xxxxxxxxxxx> wrote:
>
>> How do you set a spreadsheet to recognise hours and minutes in entering
>> figures. The option in format cells never shows it how I enter it.
>>
>>
>> In format cells / number tab / custom I select hh:mm but it never
>> recognises
>> an entry. E.g. 3 Hrs 45 mins shows as 10:48. But 10.48 what.
>>
>>
>>
>> To show 3.75 hours in hours and minutes I have to enter main digit then a
>> formula - = (3+(0.75/100)*60). Doing this for every line is quite
>> painstaking.
>>
>>
>>
>> Can anyone simplify it for me please.
>>
>>
>>
>>
>>
>>
>> Mike
>>
>>
>>
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