What Day of the Year Is It?

Are you trying to figure out what the current day number is?

icon for a calendar with one day highlighted red

Today Is:

Day 144

Week 20

Today is day 144 of 366 days in 2024. This is calculated from today's date (May 23, 2024) using the ISO-8601 date format.

How Many Days Are Left in the Year?

There are 222 days left in 2024, in case you want to start your countdown to New Year's.

What Week Number Is It?

We are currently in week 20 of 52 weeks in 2024. You can also use our week of the year page to check the current week number.

What Is a Day Number?

A day number is part of an ordinal date, a date format that consists of the year and the day number of the year, ranging from 1 to 365 (366 on leap years). The day of the year (DOY) is referred to as the ordinal day number and is part of the ISO-8601 international date standard.[1]

2024 Day of the Year Calendar

The DOY calendar below shows the day number of the year for each day of 2024. The current day of the year is highlighted in yellow.

Calendar showing the day number of the year for each day of January 2024.
JANUARY
SunMonTueWedThuFriSat
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
Calendar showing the day number of the year for each day of February 2024.
FEBRUARY
SunMonTueWedThuFriSat
1
32
2
33
3
34
4
35
5
36
6
37
7
38
8
39
9
40
10
41
11
42
12
43
13
44
14
45
15
46
16
47
17
48
18
49
19
50
20
51
21
52
22
53
23
54
24
55
25
56
26
57
27
58
28
59
29
60
Calendar showing the day number of the year for each day of March 2024.
MARCH
SunMonTueWedThuFriSat
1
61
2
62
3
63
4
64
5
65
6
66
7
67
8
68
9
69
10
70
11
71
12
72
13
73
14
74
15
75
16
76
17
77
18
78
19
79
20
80
21
81
22
82
23
83
24
84
25
85
26
86
27
87
28
88
29
89
30
90
31
91
Calendar showing the day number of the year for each day of April 2024.
APRIL
SunMonTueWedThuFriSat
1
92
2
93
3
94
4
95
5
96
6
97
7
98
8
99
9
100
10
101
11
102
12
103
13
104
14
105
15
106
16
107
17
108
18
109
19
110
20
111
21
112
22
113
23
114
24
115
25
116
26
117
27
118
28
119
29
120
30
121
Calendar showing the day number of the year for each day of May 2024.
MAY
SunMonTueWedThuFriSat
1
122
2
123
3
124
4
125
5
126
6
127
7
128
8
129
9
130
10
131
11
132
12
133
13
134
14
135
15
136
16
137
17
138
18
139
19
140
20
141
21
142
22
143
23
144
24
145
25
146
26
147
27
148
28
149
29
150
30
151
31
152
Calendar showing the day number of the year for each day of June 2024.
JUNE
SunMonTueWedThuFriSat
1
153
2
154
3
155
4
156
5
157
6
158
7
159
8
160
9
161
10
162
11
163
12
164
13
165
14
166
15
167
16
168
17
169
18
170
19
171
20
172
21
173
22
174
23
175
24
176
25
177
26
178
27
179
28
180
29
181
30
182
Calendar showing the day number of the year for each day of July 2024.
JULY
SunMonTueWedThuFriSat
1
183
2
184
3
185
4
186
5
187
6
188
7
189
8
190
9
191
10
192
11
193
12
194
13
195
14
196
15
197
16
198
17
199
18
200
19
201
20
202
21
203
22
204
23
205
24
206
25
207
26
208
27
209
28
210
29
211
30
212
31
213
Calendar showing the day number of the year for each day of August 2024.
AUGUST
SunMonTueWedThuFriSat
1
214
2
215
3
216
4
217
5
218
6
219
7
220
8
221
9
222
10
223
11
224
12
225
13
226
14
227
15
228
16
229
17
230
18
231
19
232
20
233
21
234
22
235
23
236
24
237
25
238
26
239
27
240
28
241
29
242
30
243
31
244
Calendar showing the day number of the year for each day of September 2024.
SEPTEMBER
SunMonTueWedThuFriSat
1
245
2
246
3
247
4
248
5
249
6
250
7
251
8
252
9
253
10
254
11
255
12
256
13
257
14
258
15
259
16
260
17
261
18
262
19
263
20
264
21
265
22
266
23
267
24
268
25
269
26
270
27
271
28
272
29
273
30
274
Calendar showing the day number of the year for each day of October 2024.
OCTOBER
SunMonTueWedThuFriSat
1
275
2
276
3
277
4
278
5
279
6
280
7
281
8
282
9
283
10
284
11
285
12
286
13
287
14
288
15
289
16
290
17
291
18
292
19
293
20
294
21
295
22
296
23
297
24
298
25
299
26
300
27
301
28
302
29
303
30
304
31
305
Calendar showing the day number of the year for each day of November 2024.
NOVEMBER
SunMonTueWedThuFriSat
1
306
2
307
3
308
4
309
5
310
6
311
7
312
8
313
9
314
10
315
11
316
12
317
13
318
14
319
15
320
16
321
17
322
18
323
19
324
20
325
21
326
22
327
23
328
24
329
25
330
26
331
27
332
28
333
29
334
30
335
Calendar showing the day number of the year for each day of December 2024.
DECEMBER
SunMonTueWedThuFriSat
1
336
2
337
3
338
4
339
5
340
6
341
7
342
8
343
9
344
10
345
11
346
12
347
13
348
14
349
15
350
16
351
17
352
18
353
19
354
20
355
21
356
22
357
23
358
24
359
25
360
26
361
27
362
28
363
29
364
30
365
31
366

You can also use our day of the week calculator to calculate the day of the week for any date.

How To Calculate the Day of the Year Using Google Sheets or Microsoft Excel

You can also calculate the current day number in 2024 using spreadsheet software such as Google Sheets or Microsoft Excel. There are a few different DOY formulas you can use for this, depending on whether you want the day number of today or a specific date.

For the Current Date

If you want to find the day number for the current date, then use the following function:

=TODAY() - DATE(YEAR(TODAY()), 1, 0)

For instance, if the current date is October 30th, then the formula might look like this, with the result being day number 303 as seen in the graphic below:

Graphic showing the formula for Google Sheets or Microsoft Excel to calculate the day number for the current date.

For Any Date

If you want to find the day number for a specific date listed in another cell, for instance, cell A3, then you can use the following function:

=A3 - DATE(YEAR(A3), 1, 0)

For example, if there is a date value in cell A3, then the formula might look like this, which calculates the day number of June 15th, 2023 as day number 166:

Graphic showing the formula for Google Sheets or Microsoft Excel to calculate the day number any date.

If the date is listed in a cell other than A3, simply replace A3 with the cell containing the specified date.

References

  1. International Organization for Standardization, ISO 8601 Date and Time Format, https://www.iso.org/iso-8601-date-and-time-format.html