2.2.1.44.1.6 PatternTypeSpecific MonthNth
For the MonthNth or HjMonthNth recurrence pattern (value of the PatternType field is 0x0003 or 0x000B, respectively), the structure of the PatternTypeSpecific field is as follows.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
X |
Sa |
F |
Th |
W |
Tu |
M |
Su |
unused |
|||||||||||||||||||||||
|
N |
|||||||||||||||||||||||||||||||
X (1 bit): This bit is not used. MUST be zero and MUST be ignored.
Sa (1 bit): The event occurs on Saturday.
F (1 bit): The event occurs on Friday.
Th (1 bit): The event occurs on Thursday.
W (1 bit): The event occurs on Wednesday.
Tu (1 bit): The event occurs on Tuesday.
M (1 bit): The event occurs on Monday.
Su (1 bit): The event occurs on Sunday.
unused (3 bytes): These bits are not used. MUST be zero and MUST be ignored.
-
Nth Weekday of month: (bits M, Tu, W, Th, F are set)
-
Nth Weekend of month: (bits Sa, Su are set)
N (4 bytes): The occurrence of the recurrence's days in each month in which the recurrence falls. It MUST be equal to one of the values listed in the following table.
|
Name |
Value |
Meaning |
|---|---|---|
|
First |
0x00000001 |
The recurrence falls on the first occurrence of the days specified in every month. |
|
Second |
0x00000002 |
The recurrence falls on the second occurrence of the days specified in every month. |
|
Third |
0x00000003 |
The recurrence falls on the third occurrence of the days specified in every month. |
|
Fourth |
0x00000004 |
The recurrence falls on the fourth occurrence of the days specified in every month. |
|
Last |
0x00000005 |
The recurrence falls on the last occurrence of the days specified in every month. |
-
For example:
§ If an event occurs on the last weekday of every two months, the two fields of the PatternTypeSpecific field are set to 0x0000003E and 0x00000005.
§ If an event occurs on the first weekday of every two months, the two fields of the PatternTypeSpecific field are set to 0x0000003E and 0x00000001.
§ If an event occurs on the last weekend of every month, the two fields of the PatternTypeSpecific field are set to 0x00000041and 0x00000005.
§ If an event occurs on the first weekend of every month, the two fields of the PatternTypeSpecific field are set to 0x00000041 and 0x00000001.