The International Fixed Calendar (also known as the Cotsworth Calendar or the 13-Month Calendar) is a proposed reform of the Gregorian calendar designed to be more logical, practical, and easier to use.
This calendar provides perfect regularity, making scheduling, business planning, and daily life more predictable. Each date always falls on the same day of the week every year.
Learn more at the International Fixed Calendar Wikipedia page.
This day falls outside of any week or month. It occurs between Saturday, December 28th and Sunday, January 1st.
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 1 | 1 1
Jan 1 | 2 2 Jan 2 | 3 3 Jan 3 | 4 4 Jan 4 | 5 5 Jan 5 | 6 6 Jan 6 | 7 7 Jan 7 |
| 2 | 8 8 Jan 8 | 9 9 Jan 9 | 10 10 Jan 10 | 11 11 Jan 11 | 12 12 Jan 12 | 13 13 Jan 13 | 14 14 Jan 14 |
| 3 | 15 15
Jan 15 | 16 16 Jan 16 | 17 17 Jan 17 | 18 18 Jan 18 | 19 19 Jan 19 | 20 20 Jan 20 | 21 21 Jan 21 |
| 4 | 22 22 Jan 22 | 23 23 Jan 23 | 24 24 Jan 24 | 25 25 Jan 25 | 26 26 Jan 26 | 27 27 Jan 27 | 28 28 Jan 28 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 5 | 29 1 Jan 29 | 30 2
Jan 30 | 31 3 Jan 31 | 32 4 Feb 1 | 33 5 Feb 2 | 34 6 Feb 3 | 35 7 Feb 4 |
| 6 | 36 8 Feb 5 | 37 9
Feb 6 | 38 10 Feb 7 | 39 11 Feb 8 | 40 12 Feb 9 | 41 13 Feb 10 | 42 14
Feb 11 |
| 7 | 43 15 Feb 12 | 44 16 Feb 13 | 45 17 Feb 14 | 46 18 Feb 15 | 47 19
Feb 16 | 48 20 Feb 17 | 49 21 Feb 18 |
| 8 | 50 22 Feb 19 | 51 23 Feb 20 | 52 24 Feb 21 | 53 25 Feb 22 | 54 26 Feb 23 | 55 27 Feb 24 | 56 28 Feb 25 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 9 | 57 1 Feb 26 | 58 2 Feb 27 | 59 3 Feb 28 | 60 4 Mar 1 | 61 5 Mar 2 | 62 6 Mar 3 | 63 7 Mar 4 |
| 10 | 64 8 Mar 5 | 65 9 Mar 6 | 66 10 Mar 7 | 67 11 Mar 8 | 68 12 Mar 9 | 69 13 Mar 10 | 70 14 Mar 11 |
| 11 | 71 15 Mar 12 | 72 16 Mar 13 | 73 17
Mar 14 | 74 18 Mar 15 | 75 19 Mar 16 | 76 20
Mar 17 | 77 21 Mar 18 |
| 12 | 78 22 Mar 19 | 79 23 Mar 20 | 80 24 Mar 21 | 81 25 Mar 22 | 82 26 Mar 23 | 83 27 Mar 24 | 84 28 Mar 25 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 13 | 85 1
Mar 26 | 86 2 Mar 27 | 87 3 Mar 28 | 88 4 Mar 29 | 89 5 Mar 30 | 90 6 Mar 31 | 91 7 Apr 1 |
| 14 | 92 8 Apr 2 | 93 9 Apr 3 | 94 10 Apr 4 | 95 11 Apr 5 | 96 12 Apr 6 | 97 13 Apr 7 | 98 14 Apr 8 |
| 15 | 99 15
Apr 9 | 100 16 Apr 10 | 101 17 Apr 11 | 102 18
Apr 12 | 103 19 Apr 13 | 104 20 Apr 14 | 105 21
Apr 15 |
| 16 | 106 22
Apr 16 | 107 23 Apr 17 | 108 24 Apr 18 | 109 25 Apr 19 | 110 26 Apr 20 | 111 27 Apr 21 | 112 28 Apr 22 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 17 | 113 1
Apr 23 | 114 2 Apr 24 | 115 3 Apr 25 | 116 4 Apr 26 | 117 5
Apr 27 | 118 6 Apr 28 | 119 7 Apr 29 |
| 18 | 120 8 Apr 30 | 121 9 May 1 | 122 10 May 2 | 123 11 May 3 | 124 12
May 4 | 125 13 May 5 | 126 14 May 6 |
| 19 | 127 15 May 7 | 128 16 May 8 | 129 17 May 9 | 130 18 May 10 | 131 19 May 11 | 132 20 May 12 | 133 21 May 13 |
| 20 | 134 22 May 14 | 135 23 May 15 | 136 24 May 16 | 137 25 May 17 | 138 26 May 18 | 139 27
May 19 | 140 28 May 20 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 21 | 141 1 May 21 | 142 2 May 22 | 143 3 May 23 | 144 4 May 24 | 145 5 May 25 | 146 6 May 26 | 147 7 May 27 |
| 22 | 148 8 May 28 | 149 9 May 29 | 150 10 May 30 | 151 11 May 31 | 152 12 Jun 1 | 153 13 Jun 2 | 154 14
Jun 3 |
| 23 | 155 15 Jun 4 | 156 16
Jun 5 | 157 17 Jun 6 | 158 18 Jun 7 | 159 19
Jun 8 | 160 20 Jun 9 | 161 21 Jun 10 |
| 24 | 162 22 Jun 11 | 163 23 Jun 12 | 164 24 Jun 13 | 165 25 Jun 14 | 166 26 Jun 15 | 167 27 Jun 16 | 168 28 Jun 17 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 25 | 169 1 Jun 18 | 170 2 Jun 19 | 171 3 Jun 20 | 172 4
All Holidays for Sol 4
Jun 21 | 173 5 Jun 22 | 174 6 Jun 23 | 175 7 Jun 24 |
| 26 | 176 8 Jun 25 | 177 9 Jun 26 | 178 10 Jun 27 | 179 11 Jun 28 | 180 12 Jun 29 | 181 13 Jun 30 | 182 14 Jul 1 |
| 27 | 183 15 Jul 2 | 184 16 Jul 3 | 185 17 Jul 4 | 186 18 Jul 5 | 187 19 Jul 6 | 188 20 Jul 7 | 189 21 Jul 8 |
| 28 | 190 22 Jul 9 | 191 23 Jul 10 | 192 24 Jul 11 | 193 25 Jul 12 | 194 26 Jul 13 | 195 27 Jul 14 | 196 28 Jul 15 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 29 | 197 1 Jul 16 | 198 2 Jul 17 | 199 3 Jul 18 | 200 4 Jul 19 | 201 5 Jul 20 | 202 6 Jul 21 | 203 7 Jul 22 |
| 30 | 204 8 Jul 23 | 205 9 Jul 24 | 206 10 Jul 25 | 207 11 Jul 26 | 208 12 Jul 27 | 209 13 Jul 28 | 210 14 Jul 29 |
| 31 | 211 15
Jul 30 | 212 16 Jul 31 | 213 17 Aug 1 | 214 18 Aug 2 | 215 19 Aug 3 | 216 20 Aug 4 | 217 21 Aug 5 |
| 32 | 218 22 Aug 6 | 219 23 Aug 7 | 220 24 Aug 8 | 221 25 Aug 9 | 222 26 Aug 10 | 223 27 Aug 11 | 224 28 Aug 12 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 33 | 225 1
Aug 13 | 226 2 Aug 14 | 227 3 Aug 15 | 228 4 Aug 16 | 229 5 Aug 17 | 230 6 Aug 18 | 231 7 Aug 19 |
| 34 | 232 8 Aug 20 | 233 9 Aug 21 | 234 10 Aug 22 | 235 11 Aug 23 | 236 12 Aug 24 | 237 13 Aug 25 | 238 14 Aug 26 |
| 35 | 239 15 Aug 27 | 240 16 Aug 28 | 241 17 Aug 29 | 242 18 Aug 30 | 243 19 Aug 31 | 244 20 Sep 1 | 245 21 Sep 2 |
| 36 | 246 22 Sep 3 | 247 23 Sep 4 | 248 24 Sep 5 | 249 25 Sep 6 | 250 26 Sep 7 | 251 27 Sep 8 | 252 28 Sep 9 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 37 | 253 1 Sep 10 | 254 2
Sep 11 | 255 3 Sep 12 | 256 4 Sep 13 | 257 5 Sep 14 | 258 6 Sep 15 | 259 7
Sep 16 |
| 38 | 260 8 Sep 17 | 261 9 Sep 18 | 262 10 Sep 19 | 263 11 Sep 20 | 264 12 Sep 21 | 265 13 Sep 22 | 266 14 Sep 23 |
| 39 | 267 15 Sep 24 | 268 16 Sep 25 | 269 17 Sep 26 | 270 18 Sep 27 | 271 19 Sep 28 | 272 20 Sep 29 | 273 21 Sep 30 |
| 40 | 274 22
Oct 1 | 275 23 Oct 2 | 276 24 Oct 3 | 277 25 Oct 4 | 278 26 Oct 5 | 279 27 Oct 6 | 280 28 Oct 7 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 41 | 281 1 Oct 8 | 282 2 Oct 9 | 283 3 Oct 10 | 284 4 Oct 11 | 285 5 Oct 12 | 286 6 Oct 13 | 287 7 Oct 14 |
| 42 | 288 8 Oct 15 | 289 9 Oct 16 | 290 10 Oct 17 | 291 11 Oct 18 | 292 12
Oct 19 | 293 13 Oct 20 | 294 14
Oct 21 |
| 43 | 295 15 Oct 22 | 296 16 Oct 23 | 297 17 Oct 24 | 298 18 Oct 25 | 299 19 Oct 26 | 300 20 Oct 27 | 301 21 Oct 28 |
| 44 | 302 22 Oct 29 | 303 23 Oct 30 | 304 24 Oct 31 | 305 25 Nov 1 | 306 26 Nov 2 | 307 27 Nov 3 | 308 28 Nov 4 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 45 | 309 1 Nov 5 | 310 2
Nov 6 | 311 3 Nov 7 | 312 4 Nov 8 | 313 5 Nov 9 | 314 6 Nov 10 | 315 7 Nov 11 |
| 46 | 316 8 Nov 12 | 317 9 Nov 13 | 318 10 Nov 14 | 319 11
Nov 15 | 320 12 Nov 16 | 321 13 Nov 17 | 322 14 Nov 18 |
| 47 | 323 15
Nov 19 | 324 16 Nov 20 | 325 17 Nov 21 | 326 18 Nov 22 | 327 19 Nov 23 | 328 20
Nov 24 | 329 21 Nov 25 |
| 48 | 330 22 Nov 26 | 331 23 Nov 27 | 332 24 Nov 28 | 333 25 Nov 29 | 334 26 Nov 30 | 335 27 Dec 1 | 336 28
Dec 2 |
| Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
|---|---|---|---|---|---|---|---|
| 49 | 337 1 Dec 3 | 338 2 Dec 4 | 339 3 Dec 5 | 340 4 Dec 6 | 341 5 Dec 7 | 342 6 Dec 8 | 343 7 Dec 9 |
| 50 | 344 8 Dec 10 | 345 9 Dec 11 | 346 10 Dec 12 | 347 11 Dec 13 | 348 12 Dec 14 | 349 13 Dec 15 | 350 14 Dec 16 |
| 51 | 351 15 Dec 17 | 352 16 Dec 18 | 353 17 Dec 19 | 354 18 Dec 20 | 355 19 Dec 21 | 356 20 Dec 22 | 357 21 Dec 23 |
| 52 | 358 22 Dec 24 | 359 23 Dec 25 | 360 24 Dec 26 | 361 25
Dec 27 | 362 26
Dec 28 | 363 27 Dec 29 | 364 28 Dec 30 |