شماره هفته جاری
18
...
مه 2026 تقویم با شمارههای هفته
| هفته | دوشنبه | سهشنبه | چهارشنبه | پنجشنبه | جمعه | شنبه | خورشید |
|---|---|---|---|---|---|---|---|
| 18 | 27 | 28 | 29 | 30 | 1 | 2 | 3 |
| 19 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 20 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 21 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 22 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
* ردیف هایلایت شده نمایانگر ISO-8601 هفته است.
تعطیلات این هفته
سوالات متداول درباره شمارههای هفته
What is the current week number?
The current ISO week number is 18.
How is the first week of the year defined?
According to ISO 8601, Week 1 is the week that contains the first Thursday of the year, or the week that contains January 4th.
Does a week start on Sunday or Monday?
Under the ISO 8601 standard, the week always starts on Monday.
Why do some years have 53 weeks?
A year has 53 weeks if January 1st falls on a Thursday (or Wednesday in a leap year).
How many weeks are in 2026?
The year 2026 has 53 weeks according to the ISO 8601 standard.
When does the current week end?
The current week ends on Sunday, which is the 7th day of the ISO cycle.
مرور هفته 18 بر اساس سال
تمام هفتهها در 2026
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
Click any number above to view specific dates, holidays, and details for that week of the year.
چگونه شمارههای هفته را در ... نمایش دهیم
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استاندارد: ISO 8601
The ISO 8601 standard is the international agreement for representing dates and times. It defines the week as starting on دوشنبه و هفته ۱ به عنوان هفتهای که شامل اولین پنجشنبه سال است.