2027 calendar with week numbers

The Schema calendar prints the ISO 8601 week number beside every week, on the yearly page and on each monthly page. Weeks start on Monday. Every layout fits A4, A5 and US Letter, in portrait and landscape.

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Preview

2027
HEX 0x07EBBIN 0b11111101011
01January
WK
M
T
W
T
F
S
S
53
28
29
30
31
1
2
3
01
4
5
6
7
8
9
10
02
11
12
13
14
15
16
17
03
18
19
20
21
22
23
24
04
25
26
27
28
29
30
31
05
1
2
3
4
5
6
7
02February
WK
M
T
W
T
F
S
S
05
1
2
3
4
5
6
7
06
8
9
10
11
12
13
14
07
15
16
17
18
19
20
21
08
22
23
24
25
26
27
28
09
1
2
3
4
5
6
7
10
8
9
10
11
12
13
14
03March
WK
M
T
W
T
F
S
S
09
1
2
3
4
5
6
7
10
8
9
10
11
12
13
14
11
15
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17
18
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12
22
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25
26
27
28
13
29
30
31
1
2
3
4
14
5
6
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8
9
10
11
04April
WK
M
T
W
T
F
S
S
13
29
30
31
1
2
3
4
14
5
6
7
8
9
10
11
15
12
13
14
15
16
17
18
16
19
20
21
22
23
24
25
17
26
27
28
29
30
1
2
18
3
4
5
6
7
8
9
05May
WK
M
T
W
T
F
S
S
17
26
27
28
29
30
1
2
18
3
4
5
6
7
8
9
19
10
11
12
13
14
15
16
20
17
18
19
20
21
22
23
21
24
25
26
27
28
29
30
22
31
1
2
3
4
5
6
06June
WK
M
T
W
T
F
S
S
22
31
1
2
3
4
5
6
23
7
8
9
10
11
12
13
24
14
15
16
17
18
19
20
25
21
22
23
24
25
26
27
26
28
29
30
1
2
3
4
27
5
6
7
8
9
10
11
07July
WK
M
T
W
T
F
S
S
26
28
29
30
1
2
3
4
27
5
6
7
8
9
10
11
28
12
13
14
15
16
17
18
29
19
20
21
22
23
24
25
30
26
27
28
29
30
31
1
31
2
3
4
5
6
7
8
08August
WK
M
T
W
T
F
S
S
30
26
27
28
29
30
31
1
31
2
3
4
5
6
7
8
32
9
10
11
12
13
14
15
33
16
17
18
19
20
21
22
34
23
24
25
26
27
28
29
35
30
31
1
2
3
4
5
09September
WK
M
T
W
T
F
S
S
35
30
31
1
2
3
4
5
36
6
7
8
9
10
11
12
37
13
14
15
16
17
18
19
38
20
21
22
23
24
25
26
39
27
28
29
30
1
2
3
40
4
5
6
7
8
9
10
10October
WK
M
T
W
T
F
S
S
39
27
28
29
30
1
2
3
40
4
5
6
7
8
9
10
41
11
12
13
14
15
16
17
42
18
19
20
21
22
23
24
43
25
26
27
28
29
30
31
44
1
2
3
4
5
6
7
11November
WK
M
T
W
T
F
S
S
44
1
2
3
4
5
6
7
45
8
9
10
11
12
13
14
46
15
16
17
18
19
20
21
47
22
23
24
25
26
27
28
48
29
30
1
2
3
4
5
49
6
7
8
9
10
11
12
12December
WK
M
T
W
T
F
S
S
48
29
30
1
2
3
4
5
49
6
7
8
9
10
11
12
50
13
14
15
16
17
18
19
51
20
21
22
23
24
25
26
52
27
28
29
30
31
1
2
01
3
4
5
6
7
8
9
12 MONTHSISO-8601 / REV.04
Yearly page
01
January
HEX 0x01BIN 0b0001
WK
Mon
Tue
Wed
Thu
Fri
Sat
Sun
W53
280x1C
290x1D
300x1E
310x1F
010x01
020x02
030x03
W01
040x04
050x05
060x06
070x07
080x08
090x09
100x0A
W02
110x0B
120x0C
130x0D
140x0E
150x0F
160x10
170x11
W03
180x12
190x13
200x14
210x15
220x16
230x17
240x18
W04
250x19
260x1A
270x1B
280x1C
290x1D
300x1E
310x1F
W05
010x01
020x02
030x03
040x04
050x05
060x06
070x07
6 WEEKS / 42 CELLSISO-8601 / REV.04
Monthly page, January 2027

How ISO 8601 numbers the weeks

ISO 8601 weeks run from Monday to Sunday. Week 1 is the week that holds the year's first Thursday, which is always the week that holds 4 January. The first and last week of a year can include days from the year next to it.

ISO weeks in 2027
52
Week 1 starts on
Monday 4 January 2027
Week 52 ends on
Sunday 2 January 2028

Related

Frequently Asked Questions

Which week numbering does the calendar use?

ISO 8601. Week 1 is the week that holds the year's first Thursday, so week 1 of 2027 starts on Monday 4 January 2027.

Does the week start on Monday or Sunday?

ISO weeks start on Monday, and so does the default layout. The calendar also comes in a Sunday-start layout. There, each row is numbered by the Monday after its Sunday, which is the ISO week of six of its seven days.

Why do some years have 53 weeks?

A year has 53 ISO weeks when it starts on a Thursday, or on a Wednesday in a leap year. Every other year has 52. 2027 has 52 ISO weeks, and the last one ends on Sunday 2 January 2028.

Which paper sizes does it come in?

A4, A5 and US Letter, each in portrait and landscape. Every one of the six layouts keeps the week column on every month.