Customize Your Calendar's Working Hours and Days

[Anton D. Nagy]

If you are like me, then you probably spend a lot of time in your Calendar app, with all the scheduling, appointments, tasks, etc. Here’s the deal, depending on your location and specific everyday’s environment, the default Calendar behavior will not suit you. Most of us run into these two problems: either your working days, working hours or both don’t match the defaults. Here’s how to change them (be carefull, wrong values in the registry can cause system instability of failure):

Grab a registry editor, like the free PHM Registry Editor, and navigate to the key: HKLM\Software\Microsoft\Calendar\ActiveTimes\

Inside, you will see an ActiveTimes entry, which you need to change as follows to suit your needs:

Monday – Friday, 8am to 5pm:
2210003E (DWORD hexadecimal)

Monday – Friday, 9am to 5pm:
2212003E (DWORD hexadecimal)

Monday – Friday, 9am to 6pm:
2412003E (DWORD hexadecimal)

Monday – Saturday, 8am to 5pm:
2210007E (DWORD hexadecimal)

Monday – Saturday, 9am to 5pm:
2212007E (DWORD hexadecimal)

Monday – Saturday, 9am to 6pm:
2412007E (DWORD hexadecimal)

You can see in the screenshot, I work Monday to Saturday from 9am to 6pm (our work week starts Monday).

[adamz]

How do you calculate the proper hexidecimal values there?

[Anton D. Nagy]

Originally Posted by adamz

How do you calculate the proper hexidecimal values there?

Get a free hexadecimal to binary converted, like http://www.easycalculation.com/hex-converter.php
If you check values for let's say termination "7E" it will get you a binary value of "01111110" which is the working days in reverse order, so we need the last 7 digits, ie SFTWTMS.
"3E" will result in "00111110" so Monday-Friday.

SFTWTMS
1111110 - for value 7E
0111110 - for value 3E
1111100 - for value 7C, like in Tues-Sat
etc.

It's all in the binary.

Will report back about the hours, but it's kind of similar.

[melvynadam]

Sorry but the binary explanation wasn't all that clear for me. I work Sunday to Thursday 9am-6pm. What's the magic code?