A Julian date (also called an ordinal date or day of year) numbers each day of 2024 from 001 to 366. It is the format printed on manufacturing lot codes, food-packaging date stamps, and military date-time groups. Find any date in the table below: read down to the day of the month and across to the month to get that day's Julian date. Because 2024 is a leap year, February has 29 days and the year runs to day 366.
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 001 | 032 | 061 | 092 | 122 | 153 | 183 | 214 | 245 | 275 | 306 | 336 |
| 2 | 002 | 033 | 062 | 093 | 123 | 154 | 184 | 215 | 246 | 276 | 307 | 337 |
| 3 | 003 | 034 | 063 | 094 | 124 | 155 | 185 | 216 | 247 | 277 | 308 | 338 |
| 4 | 004 | 035 | 064 | 095 | 125 | 156 | 186 | 217 | 248 | 278 | 309 | 339 |
| 5 | 005 | 036 | 065 | 096 | 126 | 157 | 187 | 218 | 249 | 279 | 310 | 340 |
| 6 | 006 | 037 | 066 | 097 | 127 | 158 | 188 | 219 | 250 | 280 | 311 | 341 |
| 7 | 007 | 038 | 067 | 098 | 128 | 159 | 189 | 220 | 251 | 281 | 312 | 342 |
| 8 | 008 | 039 | 068 | 099 | 129 | 160 | 190 | 221 | 252 | 282 | 313 | 343 |
| 9 | 009 | 040 | 069 | 100 | 130 | 161 | 191 | 222 | 253 | 283 | 314 | 344 |
| 10 | 010 | 041 | 070 | 101 | 131 | 162 | 192 | 223 | 254 | 284 | 315 | 345 |
| 11 | 011 | 042 | 071 | 102 | 132 | 163 | 193 | 224 | 255 | 285 | 316 | 346 |
| 12 | 012 | 043 | 072 | 103 | 133 | 164 | 194 | 225 | 256 | 286 | 317 | 347 |
| 13 | 013 | 044 | 073 | 104 | 134 | 165 | 195 | 226 | 257 | 287 | 318 | 348 |
| 14 | 014 | 045 | 074 | 105 | 135 | 166 | 196 | 227 | 258 | 288 | 319 | 349 |
| 15 | 015 | 046 | 075 | 106 | 136 | 167 | 197 | 228 | 259 | 289 | 320 | 350 |
| 16 | 016 | 047 | 076 | 107 | 137 | 168 | 198 | 229 | 260 | 290 | 321 | 351 |
| 17 | 017 | 048 | 077 | 108 | 138 | 169 | 199 | 230 | 261 | 291 | 322 | 352 |
| 18 | 018 | 049 | 078 | 109 | 139 | 170 | 200 | 231 | 262 | 292 | 323 | 353 |
| 19 | 019 | 050 | 079 | 110 | 140 | 171 | 201 | 232 | 263 | 293 | 324 | 354 |
| 20 | 020 | 051 | 080 | 111 | 141 | 172 | 202 | 233 | 264 | 294 | 325 | 355 |
| 21 | 021 | 052 | 081 | 112 | 142 | 173 | 203 | 234 | 265 | 295 | 326 | 356 |
| 22 | 022 | 053 | 082 | 113 | 143 | 174 | 204 | 235 | 266 | 296 | 327 | 357 |
| 23 | 023 | 054 | 083 | 114 | 144 | 175 | 205 | 236 | 267 | 297 | 328 | 358 |
| 24 | 024 | 055 | 084 | 115 | 145 | 176 | 206 | 237 | 268 | 298 | 329 | 359 |
| 25 | 025 | 056 | 085 | 116 | 146 | 177 | 207 | 238 | 269 | 299 | 330 | 360 |
| 26 | 026 | 057 | 086 | 117 | 147 | 178 | 208 | 239 | 270 | 300 | 331 | 361 |
| 27 | 027 | 058 | 087 | 118 | 148 | 179 | 209 | 240 | 271 | 301 | 332 | 362 |
| 28 | 028 | 059 | 088 | 119 | 149 | 180 | 210 | 241 | 272 | 302 | 333 | 363 |
| 29 | 029 | 060 | 089 | 120 | 150 | 181 | 211 | 242 | 273 | 303 | 334 | 364 |
| 30 | 030 | 090 | 121 | 151 | 182 | 212 | 243 | 274 | 304 | 335 | 365 | |
| 31 | 031 | 091 | 152 | 213 | 244 | 305 | 366 |
Key 2024 Julian dates
- January 1, 2024 - Julian date 001
- July 4, 2024 - Julian date 186
- December 25, 2024 - Julian date 360
- December 31, 2024 - Julian date 366 (last day of the year)
How to read the Julian date calendar
- Find the day of the month in the left column (1-31).
- Move across to the month column.
- The cell shows that date's Julian date (day of year), written as three digits.
Need today's date instead? Use our live Julian date calculator for the current Julian day number, ordinal date, and Modified Julian Date.
Julian Date Calendars for other years
Frequently asked questions
What is the Julian date for January 1, 2024?
January 1, 2024 is Julian date 001 (the first day of the year).
What is the Julian date for December 31, 2024?
December 31, 2024 is Julian date 366, the last day of 2024.
Is 2024 a leap year?
Yes. 2024 has 366 days, so Julian dates run from 001 to 366.
What is a Julian date?
In everyday use, a Julian date (or ordinal date) is the day of the year numbered 1 to 365 (366 in a leap year). It is widely used on manufacturing lot codes, food packaging, and in the military.