- How To Add American Holidays To Outlook 2016 For Mac Indent Margin Compose Email
- How To Add American Holidays To Outlook 2016 For Macbook Pro
Click File Options to open the Outlook Options dialog box. In the Outlook Options dialog box, click Calendar in the left bar, and then click the Add Holidays button in the Calendar options section.
A Resource Account is an object in the Exchange Calendar that represents a room or a piece of equipment. This article describes ways to use it, view it, and share it.
- Oct 26, 2016 Each version of Outlook includes holidays you can add to your calendar by going to Tools, Options, Calendar options, Holidays. Select the country (or countries) that has the holidays you want on your calendar and import. If you use a version of Outlook longer than 3 years or so, you'll need to find an alternate source for holidays.
- Here's the coming Easter weekend with the different holidays marked for US, UK and Australia. Outlook 2013 will load holiday information for 2012 to 2022. The data is supplied with Outlook and may not include later changes made by governments for special occasions.
This article applies to: Outlook 2016 for Mac, Resource Accounts
Schedule (Invite) a Resource
The default setting is that anyone using Exchange Calendar can schedule a resource. However, the owner can change this so that, when someone includes the resource as an invitee to a meeting, the owner (or someone delegated by the owner) approves or denies the request.
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- When creating a meeting proposal, 'invite' the resource by adding them the same way you would add a person.
- Once you've added the resource to your invitation, review its free/busy time on the Scheduling tab, just like you would for the people you've invited.
Resource Accounts do not allow scheduling conflicts; that is, if the resource already has an event scheduled for a particular time, no one else can 'invite' the resource to another event.
See the Calendar for a Resource where You Have Access Rights
See our View Resource Accounts in Outlook 2016 for Mac article.
See the Calendar for a Resource that Has Been Shared With You
The default setting is that anyone can see a resource's free/busy status by using the Scheduling tab to set up an event.
In order to view a Resource Account's calendar directly, like you'd view your own calendar, the owner (or someone delegated by the owner) must give you access permissions.
- If the resource owner has granted you viewing or editing permissions, you can open the resource's calendar in the same way that you'd view a shared personal calendar.
How to Change the Settings for a Resource
Only the owner (or someone delegated by the owner) can adjust the settings for a resource.
- Configure how the resource can be scheduled, including
- Automatic scheduling vs. request to schedule
- Maximum meeting length
- Whether recurring meetings are allowed
- Various privacy settings
Original KB number: 2642044
Summary
Although time may seem like a simple human concept that lets everyone across the globe receive a meeting request and then attend the meeting at the same time, the concept is actually very complex. This article describes how Microsoft Outlook 2010 and later versions achieve this goal by using a combination of items such as Coordinated Universal Time (UTC), time zone offset, daylight saving time (DST) rules, and Windows time zone settings.
More information
Before we examine the details of how time zone normalization works in Outlook, it is important to define some important terms.
UTC
UTC signifies Coordinated Universal Time. Think of this as the true time on planet Earth that never changes (except for minor leap seconds here and there to account for changes in the planet's rotation).
For more information about UTC, see Coordinated Universal Time.
Time zone offset
Time zone offset is the time for your geographic region in relation to UTC. For example, the Pacific Time zone is 8 hours behind UTC. Therefore, if it is 8 P.M. UTC, the time in the Pacific Time zone is noon.
Daylight saving time rules
Daylight saving time rules are the rules by which certain regions seasonally change their time zone offset. These rules include both a start date and an end date for the DST period and also the number of hours for the time zone offset. For example, in the summer, the time in the Pacific Time Zone may be calculated as UTC ‒ 7 hours, whereas for the rest year, the time is calculated as UTC ‒ 8 hours.
Windows global time zone database
Windows stores all time zone and DST rules for the whole planet in the Windows global time zone database. The database is stored in the Windows registry under the following subkey:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionTime ZonesWindows current time zone settings
Windows current time zone settings are the settings Windows is currently using to determine the time for your computer. Of all the rules in the Windows global time zone database, only one set of DST rules can be applied. The Windows current time stores the set of rules that is currently being used to calculate time on your computer.
The Windows current time zone settings are stored in the Windows registry under the following subkey:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlTimeZoneInformationComputer time
Computer time is the actual time that is displayed by Windows, as seen in the following screenshot of the notification area.
If you select this part of the Windows notification area, an enhanced calendar and clock are displayed.
You can select Change date and time settings to examine the current time zone settings for your computer (Screenshot for this step is listed below).
How computer time is calculated
Computer time is calculated by taking UTC time, adding an offset that is based on the time zone configured for your computer, and then optionally adjusting the offset for daylight saving time (depending on the DST rules). The formula that is used to calculate computer time is as follows:
UTC + Time zone offset + DST offset
Be aware that this method represents how people have agreed to think about the concept of time. This method is a world standard, and it is how Microsoft implements time on your computer.
How Outlook handles time zone offset and DST rules in calendar items
It might seem like a simple task to make sure that two people who have the same meeting request attend the meeting at the same time. However, when you add scenarios in which time zones are changing with different daylight saving time rules, the calculation becomes complex.
To see how Outlook handles this situation, consider the following scenario:
The meeting organizer has the following Windows current time zone settings:
Pacific Time zone (UTC‒8; DST starts on March 13, 2011; DST ends on November 6, 2011)
The meeting attendee has the following Windows current time zone settings:
Eastern Time zone (UTC‒5; DST starts on March 13, 2011; DST ends on November 6, 2011)
The meeting organizer is creating a meeting on their calendar for November 20, 2011, at 7 A.M.
Step 1 - Organizer sends meeting request with time zone information
Before we examine the details of how time zone normalization works in Outlook, it is important to define some important terms.
UTC
UTC signifies Coordinated Universal Time. Think of this as the true time on planet Earth that never changes (except for minor leap seconds here and there to account for changes in the planet's rotation).
For more information about UTC, see Coordinated Universal Time.
Time zone offset
Time zone offset is the time for your geographic region in relation to UTC. For example, the Pacific Time zone is 8 hours behind UTC. Therefore, if it is 8 P.M. UTC, the time in the Pacific Time zone is noon.
Daylight saving time rules
Daylight saving time rules are the rules by which certain regions seasonally change their time zone offset. These rules include both a start date and an end date for the DST period and also the number of hours for the time zone offset. For example, in the summer, the time in the Pacific Time Zone may be calculated as UTC ‒ 7 hours, whereas for the rest year, the time is calculated as UTC ‒ 8 hours.
Windows global time zone database
Windows stores all time zone and DST rules for the whole planet in the Windows global time zone database. The database is stored in the Windows registry under the following subkey:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionTime ZonesWindows current time zone settings
Windows current time zone settings are the settings Windows is currently using to determine the time for your computer. Of all the rules in the Windows global time zone database, only one set of DST rules can be applied. The Windows current time stores the set of rules that is currently being used to calculate time on your computer.
The Windows current time zone settings are stored in the Windows registry under the following subkey:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlTimeZoneInformationComputer time
Computer time is the actual time that is displayed by Windows, as seen in the following screenshot of the notification area.
If you select this part of the Windows notification area, an enhanced calendar and clock are displayed.
You can select Change date and time settings to examine the current time zone settings for your computer (Screenshot for this step is listed below).
How computer time is calculated
Computer time is calculated by taking UTC time, adding an offset that is based on the time zone configured for your computer, and then optionally adjusting the offset for daylight saving time (depending on the DST rules). The formula that is used to calculate computer time is as follows:
UTC + Time zone offset + DST offset
Be aware that this method represents how people have agreed to think about the concept of time. This method is a world standard, and it is how Microsoft implements time on your computer.
How Outlook handles time zone offset and DST rules in calendar items
It might seem like a simple task to make sure that two people who have the same meeting request attend the meeting at the same time. However, when you add scenarios in which time zones are changing with different daylight saving time rules, the calculation becomes complex.
To see how Outlook handles this situation, consider the following scenario:
The meeting organizer has the following Windows current time zone settings:
Pacific Time zone (UTC‒8; DST starts on March 13, 2011; DST ends on November 6, 2011)
The meeting attendee has the following Windows current time zone settings:
Eastern Time zone (UTC‒5; DST starts on March 13, 2011; DST ends on November 6, 2011)
The meeting organizer is creating a meeting on their calendar for November 20, 2011, at 7 A.M.
Step 1 - Organizer sends meeting request with time zone information
On the organizer's computer, the meeting in the request is created to start at 7 A.M.
On the organizer's computer, Outlook sends the meeting request. The request contains the following information in the message properties:
Meeting is at 3 P.M. UTC on November 20, 2011
My time zone is Pacific (UTC‒8)
DST starts on March 13, 2011, DST ends on November 6, 2011, and the offset is +1
After the meeting is created, the government mandates a new law according to which, in the Pacific Time Zone, DST starts on February 2, 2011, and ends on December 1, 2011. Because there are new time zone rules, and the appointment falls in the time period in which a new time zone rule is applied, normalization occurs (steps 2 and 3). This normalization is depicted in the following figure.
Step 2 - Attendee's Outlook determines intended local time
On the attendee's computer, Outlook calculates the intended local time of the meeting based on the information that is included the meeting request:
Intended local time = UTC at meeting creation + offset for time zone + offset for DST at meeting creation
- UTC at meeting creation is 3 P.M. UTC
- Offset for creation time zone (Pacific) is ‒8
- Offset for DST for Pacific Time at meeting creation is 0
Intended local time = 3 P.M. UTC + (‒8 hours for time zone offset) + (0 hours for DST offset) = 7 A.M. Pacific Time
Step 3 - Attendee's Outlook determines normalized UTC time
On the attendee's computer, Outlook normalizes the time of the meeting based on the Windows global time zone database on the attendee's computer to determine the UTC time.
UTC at meeting start = intended local time ‒ offset for time zone ‒ offset for DST
- Intended local time is 7 A.M. Pacific Time (based on the calculation in step 2)
- Offset for creation time zone (Pacific) is ‒8
- Offset for DST for Pacific Time at meeting start is +1
- UTC at meeting start = 7 A.M. intended local time ‒ (‒8 hours for time zone) ‒ (1 hour for DST)
UTC at meeting start = 7 A.M. + 8 hours ‒ 1 hour = 2 P.M. UTC
Step 4 - Attendee determines correct time for this appointment for the attendee's time settings
On the attendee's computer, Outlook converts UTC to the local computer time by using the Windows current time zone settings.
Local start time = UTC at meeting start + offset for local time zone + offset for DST at meeting start
- UTC at meeting start is 2 P.M. UTC (based on the calculation in step 3)
- Offset for local time zone (Eastern) is ‒5
- Offset for DST in Eastern Time at meeting start for local time zone is +1
Local start time = 2 P.M. UTC + (‒5 hours for time zone) + 1 hour for DST
This equates to 10 A.M. Eastern Time, attendee's local computer time, and this is the time for which the meeting is scheduled on the attendee's calendar.
Note
How To Add American Holidays To Outlook 2016 For Mac Indent Margin Compose Email
One core issue is that if you do not select Automatically adjust clock for Daylight Saving Time on the attendee's computer, there can be a mismatch in the UTC offset (off by one hour) between the time zone rules in the Windows global time zone database and the Windows current time zone settings. To select Automatically adjust clock for Daylight Saving Time, select Change time zone in the Date and Time dialog box to display the Time Zone Settings dialog box (Screen shot for this step is listed below).
How To Add American Holidays To Outlook 2016 For Macbook Pro
For more information about how to manage daylight saving time and time zone configurations and updates, see Daylight Saving Time Help and Support Center.
