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 198
 199 <h1>Class <code>luci.http.date</code></h1>
 200
 201 <p></p>
 202
 203
 204
 205
 206
 207
 208
 209 <h2>Functions</h2>
 210 <table class="function_list">
 211
 212         <tr>
 213         <td class="name" nowrap><a href="#compare">compare</a>&nbsp;(d1, d2)</td>
 214         <td class="summary">
 215
 216 Compare two dates which can either be unix epoch times or HTTP date strings.</td>
 217         </tr>
 218
 219         <tr>
 220         <td class="name" nowrap><a href="#to_http">to_http</a>&nbsp;(time)</td>
 221         <td class="summary">
 222
 223 Convert the given unix epoch time to valid HTTP date string.</td>
 224         </tr>
 225
 226         <tr>
 227         <td class="name" nowrap><a href="#to_unix">to_unix</a>&nbsp;(data)</td>
 228         <td class="summary">
 229
 230 Parse given HTTP date string and convert it to unix epoch time.</td>
 231         </tr>
 232
 233         <tr>
 234         <td class="name" nowrap><a href="#tz_offset">tz_offset</a>&nbsp;(tz)</td>
 235         <td class="summary">
 236
 237 Return the time offset in seconds between the UTC and given time zone.</td>
 238         </tr>
 239
 240 </table>
 241
 242
 243
 244
 245
 246
 247 <br/>
 248 <br/>
 249
 250
 251 <h2><a name="functions"></a>Functions</h2>
 252 <dl class="function">
 253
 254
 255
 256 <dt><a name="compare"></a><strong>compare</strong>&nbsp;(d1, d2)</dt>
 257 <dd>
 258
 259
 260 Compare two dates which can either be unix epoch times or HTTP date strings.
 261
 262
 263
 264 <h3>Parameters</h3>
 265 <ul>
 266
 267         <li>
 268           d1: The first date or epoch time to compare
 269         </li>
 270
 271         <li>
 272           d2: The first date or epoch time to compare
 273         </li>
 274
 275 </ul>
 276
 277
 278
 279
 280
 281
 282 <h3>Return values:</h3>
 283 <ol>
 284
 285         <li>-1  -  if d1 is lower then d2
 286
 287         <li>0   -  if both dates are equal
 288
 289         <li>1   -  if d1 is higher then d2
 290
 291 </ol>
 292
 293
 294
 295 </dd>
 296
 297
 298
 299
 300 <dt><a name="to_http"></a><strong>to_http</strong>&nbsp;(time)</dt>
 301 <dd>
 302
 303
 304 Convert the given unix epoch time to valid HTTP date string.
 305
 306
 307
 308 <h3>Parameters</h3>
 309 <ul>
 310
 311         <li>
 312           time: Unix epoch time
 313         </li>
 314
 315 </ul>
 316
 317
 318
 319
 320
 321
 322 <h3>Return value:</h3>
 323 String containing the formatted date
 324
 325
 326
 327 </dd>
 328
 329
 330
 331
 332 <dt><a name="to_unix"></a><strong>to_unix</strong>&nbsp;(data)</dt>
 333 <dd>
 334
 335
 336 Parse given HTTP date string and convert it to unix epoch time.
 337
 338
 339
 340 <h3>Parameters</h3>
 341 <ul>
 342
 343         <li>
 344           data: String containing the date
 345         </li>
 346
 347 </ul>
 348
 349
 350
 351
 352
 353
 354 <h3>Return value:</h3>
 355 Unix epoch time
 356
 357
 358
 359 </dd>
 360
 361
 362
 363
 364 <dt><a name="tz_offset"></a><strong>tz_offset</strong>&nbsp;(tz)</dt>
 365 <dd>
 366
 367
 368 Return the time offset in seconds between the UTC and given time zone.
 369
 370
 371
 372 <h3>Parameters</h3>
 373 <ul>
 374
 375         <li>
 376           tz: Symbolic or numeric timezone specifier
 377         </li>
 378
 379 </ul>
 380
 381
 382
 383
 384
 385
 386 <h3>Return value:</h3>
 387 Time offset to UTC in seconds
 388
 389
 390
 391 </dd>
 392
 393
 394 </dl>
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