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 194
 195 <h1>Class <code>luci.http.date</code></h1>
 196
 197 <p></p>
 198
 199
 200
 201
 202
 203
 204
 205 <h2>Functions</h2>
 206 <table class="function_list">
 207
 208         <tr>
 209         <td class="name" nowrap><a href="#compare">compare</a>&nbsp;(d1, d2)</td>
 210         <td class="summary">
 211
 212 Compare two dates which can either be unix epoch times or HTTP date strings.</td>
 213         </tr>
 214
 215         <tr>
 216         <td class="name" nowrap><a href="#to_http">to_http</a>&nbsp;(time)</td>
 217         <td class="summary">
 218
 219 Convert the given unix epoch time to valid HTTP date string.</td>
 220         </tr>
 221
 222         <tr>
 223         <td class="name" nowrap><a href="#to_unix">to_unix</a>&nbsp;(data)</td>
 224         <td class="summary">
 225
 226 Parse given HTTP date string and convert it to unix epoch time.</td>
 227         </tr>
 228
 229         <tr>
 230         <td class="name" nowrap><a href="#tz_offset">tz_offset</a>&nbsp;(tz)</td>
 231         <td class="summary">
 232
 233 Return the time offset in seconds between the UTC and given time zone.</td>
 234         </tr>
 235
 236 </table>
 237
 238
 239
 240
 241
 242
 243 <br/>
 244 <br/>
 245
 246
 247 <h2><a name="functions"></a>Functions</h2>
 248 <dl class="function">
 249
 250
 251
 252 <dt><a name="compare"></a><strong>compare</strong>&nbsp;(d1, d2)</dt>
 253 <dd>
 254
 255
 256 Compare two dates which can either be unix epoch times or HTTP date strings.
 257
 258
 259
 260 <h3>Parameters</h3>
 261 <ul>
 262
 263         <li>
 264           d1: The first date or epoch time to compare
 265         </li>
 266
 267         <li>
 268           d2: The first date or epoch time to compare
 269         </li>
 270
 271 </ul>
 272
 273
 274
 275
 276
 277
 278 <h3>Return values:</h3>
 279 <ol>
 280
 281         <li>-1  -  if d1 is lower then d2
 282
 283         <li>0   -  if both dates are equal
 284
 285         <li>1   -  if d1 is higher then d2
 286
 287 </ol>
 288
 289
 290
 291 </dd>
 292
 293
 294
 295
 296 <dt><a name="to_http"></a><strong>to_http</strong>&nbsp;(time)</dt>
 297 <dd>
 298
 299
 300 Convert the given unix epoch time to valid HTTP date string.
 301
 302
 303
 304 <h3>Parameters</h3>
 305 <ul>
 306
 307         <li>
 308           time: Unix epoch time
 309         </li>
 310
 311 </ul>
 312
 313
 314
 315
 316
 317
 318 <h3>Return value:</h3>
 319 String containing the formatted date
 320
 321
 322
 323 </dd>
 324
 325
 326
 327
 328 <dt><a name="to_unix"></a><strong>to_unix</strong>&nbsp;(data)</dt>
 329 <dd>
 330
 331
 332 Parse given HTTP date string and convert it to unix epoch time.
 333
 334
 335
 336 <h3>Parameters</h3>
 337 <ul>
 338
 339         <li>
 340           data: String containing the date
 341         </li>
 342
 343 </ul>
 344
 345
 346
 347
 348
 349
 350 <h3>Return value:</h3>
 351 Unix epoch time
 352
 353
 354
 355 </dd>
 356
 357
 358
 359
 360 <dt><a name="tz_offset"></a><strong>tz_offset</strong>&nbsp;(tz)</dt>
 361 <dd>
 362
 363
 364 Return the time offset in seconds between the UTC and given time zone.
 365
 366
 367
 368 <h3>Parameters</h3>
 369 <ul>
 370
 371         <li>
 372           tz: Symbolic or numeric timezone specifier
 373         </li>
 374
 375 </ul>
 376
 377
 378
 379
 380
 381
 382 <h3>Return value:</h3>
 383 Time offset to UTC in seconds
 384
 385
 386
 387 </dd>
 388
 389
 390 </dl>
 391
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