js 關於時間

  1 var myDate = new Date();
  2 
  3 myDate.getYear(); //獲取當前年份(2位)
  4 
  5 myDate.getFullYear(); //獲取完整的年份(4位,1970-????)
  6 
  7 myDate.getMonth(); //獲取當前月份(0-11,0代表1月)
  8 
  9 myDate.getDate(); //獲取當前日(1-31)
 10 
 11 myDate.getDay(); //獲取當前星期X(0-6,0代表星期天)
 12 
 13 myDate.getTime(); //獲取當前時間(從1970.1.1開始的毫秒數)
 14 
 15 myDate.getHours(); //獲取當前小時數(0-23)
 16 
 17 myDate.getMinutes(); //獲取當前分鐘數(0-59)
 18 
 19 myDate.getSeconds(); //獲取當前秒數(0-59)
 20 
 21 myDate.getMilliseconds(); //獲取當前毫秒數(0-999)
 22 
 23 myDate.toLocaleDateString(); //獲取當前日期
 24 
 25 var mytime=myDate.toLocaleTimeString(); //獲取當前時間
 26 
 27 myDate.toLocaleString( ); //獲取日期與時間
 28  
 29 /*日期時間腳本庫方法列表
 30 Date.prototype.isLeapYear 判斷閏年
 31 
 32 Date.prototype.Format 日期格式化
 33 
 34 Date.prototype.DateAdd 日期計算
 35 
 36 Date.prototype.DateDiff 比較日期差
 37 
 38 Date.prototype.toString 日期轉字元串
 39 
 40 Date.prototype.toArray 日期分割為數組
 41 
 42 Date.prototype.DatePart 取日期的部分信息
 43 
 44 Date.prototype.MaxDayOfDate 取日期所在月的最大天數
 45 
 46 Date.prototype.WeekNumOfYear 判斷日期所在年的第幾周
 47 
 48 StringToDate 字元串轉日期型
 49 
 50 IsValidDate 驗證日期有效性
 51 
 52 CheckDateTime 完整日期時間檢查
 53 
 54 daysBetween 日期天數差
 55 js代碼：*/
 56 //--------------------------------------------------- 
 57 
 58 // 判斷閏年 
 59 
 60 //--------------------------------------------------- 
 61 
 62 Date.prototype.isLeapYear = function() 
 63 
 64 { 
 65 
 66 return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0))); 
 67 
 68 } 
 69 
 70 
 71 //--------------------------------------------------- 
 72 
 73 // 日期格式化 
 74 
 75 // 格式 YYYY/yyyy/YY/yy 表示年份 
 76 
 77 // MM/M 月份 
 78 
 79 // W/w 星期 
 80 
 81 // dd/DD/d/D 日期 
 82 
 83 // hh/HH/h/H 時間 
 84 
 85 // mm/m 分鐘 
 86 
 87 // ss/SS/s/S 秒 
 88 
 89 //--------------------------------------------------- 
 90 
 91 Date.prototype.Format = function(formatStr) 
 92 
 93 { 
 94 
 95 var str = formatStr; 
 96 
 97 var Week = ['日','一','二','三','四','五','六']; 
 98 
 99 
100 str=str.replace(/yyyy|YYYY/,this.getFullYear()); 
101 
102 str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100)); 
103 
104 
105 str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + this.getMonth()); 
106 
107 str=str.replace(/M/g,this.getMonth()); 
108 
109 
110 str=str.replace(/w|W/g,Week[this.getDay()]); 
111 
112 
113 str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate()); 
114 
115 str=str.replace(/d|D/g,this.getDate()); 
116 
117 
118 str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours()); 
119 
120 str=str.replace(/h|H/g,this.getHours()); 
121 
122 str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes()); 
123 
124 str=str.replace(/m/g,this.getMinutes()); 
125 
126 
127 str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds()); 
128 
129 str=str.replace(/s|S/g,this.getSeconds()); 
130 
131 
132 return str; 
133 
134 } 
135 
136 
137 //+--------------------------------------------------- 
138 
139 //| 求兩個時間的天數差 日期格式為 YYYY-MM-dd 
140 
141 //+--------------------------------------------------- 
142 
143 function daysBetween(DateOne,DateTwo) 
144 
145 { 
146 
147 var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-')); 
148 
149 var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1); 
150 
151 var OneYear = DateOne.substring(0,DateOne.indexOf ('-')); 
152 
153 
154 var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-')); 
155 
156 var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1); 
157 
158 var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-')); 
159 
160 
161 var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000); 
162 
163 return Math.abs(cha); 
164 
165 } 
166 
167 
168 
169 //+--------------------------------------------------- 
170 
171 //| 日期計算 
172 
173 //+--------------------------------------------------- 
174 
175 Date.prototype.DateAdd = function(strInterval, Number) { 
176 
177 var dtTmp = this; 
178 
179 switch (strInterval) { 
180 
181 case 's' :return new Date(Date.parse(dtTmp) + (1000 * Number)); 
182 
183 case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number)); 
184 
185 case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number)); 
186 
187 case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number)); 
188 
189 case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number)); 
190 
191 case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds()); 
192 
193 case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds()); 
194 
195 case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds()); 
196 
197 } 
198 
199 } 
200 
201 
202 //+--------------------------------------------------- 
203 
204 //| 比較日期差 dtEnd 格式為日期型或者有效日期格式字元串 
205 
206 //+--------------------------------------------------- 
207 
208 Date.prototype.DateDiff = function(strInterval, dtEnd) { 
209 
210 var dtStart = this; 
211 
212 if (typeof dtEnd == 'string' )//如果是字元串轉換為日期型 
213 
214 { 
215 
216 dtEnd = StringToDate(dtEnd); 
217 
218 } 
219 
220 switch (strInterval) { 
221 
222 case 's' :return parseInt((dtEnd - dtStart) / 1000); 
223 
224 case 'n' :return parseInt((dtEnd - dtStart) / 60000); 
225 
226 case 'h' :return parseInt((dtEnd - dtStart) / 3600000); 
227 
228 case 'd' :return parseInt((dtEnd - dtStart) / 86400000); 
229 
230 case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7)); 
231 
232 case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1); 
233 
234 case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear(); 
235 
236 } 
237 
238 } 
239 
240 
241 //+--------------------------------------------------- 
242 
243 //| 日期輸出字元串，重載了系統的toString方法 
244 
245 //+--------------------------------------------------- 
246 
247 Date.prototype.toString = function(showWeek) 
248 
249 { 
250 
251 var myDate= this; 
252 
253 var str = myDate.toLocaleDateString(); 
254 
255 if (showWeek) 
256 
257 { 
258 
259 var Week = ['日','一','二','三','四','五','六']; 
260 
261 str += ' 星期' + Week[myDate.getDay()]; 
262 
263 } 
264 
265 return str; 
266 
267 } 
268 
269 
270 //+--------------------------------------------------- 
271 
272 //| 日期合法性驗證 
273 
274 //| 格式為：YYYY-MM-DD或YYYY/MM/DD 
275 
276 //+--------------------------------------------------- 
277 
278 function IsValidDate(DateStr) 
279 
280 { 
281 
282 var sDate=DateStr.replace(/(^\s+|\s+$)/g,''); //去兩邊空格; 
283 
284 if(sDate=='') return true; 
285 
286 //如果格式滿足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替換為'' 
287 
288 //資料庫中，合法日期可以是:YYYY-MM/DD(2003-3/21),資料庫會自動轉換為YYYY-MM-DD格式 
289 
290 var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g,''); 
291 
292 if (s=='') //說明格式滿足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D 
293 
294 { 
295 
296 var t=new Date(sDate.replace(/\-/g,'/')); 
297 
298 var ar = sDate.split(/[-/:]/); 
299 
300 if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate()) 
301 
302 { 
303 
304 //alert('錯誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。註意閏年。'); 
305 
306 return false; 
307 
308 } 
309 
310 } 
311 
312 else 
313 
314 { 
315 
316 //alert('錯誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。註意閏年。'); 
317 
318 return false; 
319 
320 } 
321 
322 return true; 
323 
324 } 
325 
326 
327 //+--------------------------------------------------- 
328 
329 //| 日期時間檢查 
330 
331 //| 格式為：YYYY-MM-DD HH:MM:SS 
332 
333 //+--------------------------------------------------- 
334 
335 function CheckDateTime(str) 
336 
337 { 
338 
339 var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/; 
340 
341 var r = str.match(reg); 
342 
343 if(r==null)return false; 
344 
345 r[2]=r[2]-1; 
346 
347 var d= new Date(r[1],r[2],r[3],r[4],r[5],r[6]); 
348 
349 if(d.getFullYear()!=r[1])return false; 
350 
351 if(d.getMonth()!=r[2])return false; 
352 
353 if(d.getDate()!=r[3])return false; 
354 
355 if(d.getHours()!=r[4])return false; 
356 
357 if(d.getMinutes()!=r[5])return false; 
358 
359 if(d.getSeconds()!=r[6])return false; 
360 
361 return true; 
362 
363 } 
364 
365 
366 //+--------------------------------------------------- 
367 
368 //| 把日期分割成數組 
369 
370 //+--------------------------------------------------- 
371 
372 Date.prototype.toArray = function() 
373 
374 { 
375 
376 var myDate = this; 
377 
378 var myArray = Array(); 
379 
380 myArray[0] = myDate.getFullYear(); 
381 
382 myArray[1] = myDate.getMonth(); 
383 
384 myArray[2] = myDate.getDate(); 
385 
386 myArray[3] = myDate.getHours(); 
387 
388 myArray[4] = myDate.getMinutes(); 
389 
390 myArray[5] = myDate.getSeconds(); 
391 
392 return myArray; 
393 
394 } 
395 
396 
397 //+--------------------------------------------------- 
398 
399 //| 取得日期數據信息 
400 
401 //| 參數 interval 表示數據類型 
402 
403 //| y 年 m月 d日 w星期 ww周 h時 n分 s秒 
404 
405 //+--------------------------------------------------- 
406 
407 Date.prototype.DatePart = function(interval) 
408 
409 { 
410 
411 var myDate = this; 
412 
413 var partStr=''; 
414 
415 var Week = ['日','一','二','三','四','五','六']; 
416 
417 switch (interval) 
418 
419 { 
420 
421 case 'y' :partStr = myDate.getFullYear();break; 
422 
423 case 'm' :partStr = myDate.getMonth()+1;break; 
424 
425 case 'd' :partStr = myDate.getDate();break; 
426 
427 case 'w' :partStr = Week[myDate.getDay()];break; 
428 
429 case 'ww' :partStr = myDate.WeekNumOfYear();break; 
430 
431 case 'h' :partStr = myDate.getHours();break; 
432 
433 case 'n' :partStr = myDate.getMinutes();break; 
434 
435 case 's' :partStr = myDate.getSeconds();break; 
436 
437 } 
438 
439 return partStr; 
440 
441 } 
442 
443 
444 //+--------------------------------------------------- 
445 
446 //| 取得當前日期所在月的最大天數 
447 
448 //+--------------------------------------------------- 
449 
450 Date.prototype.MaxDayOfDate = function() 
451 
452 { 
453 
454 var myDate = this; 
455 
456 var ary = myDate.toArray(); 
457 
458 var date1 = (new Date(ary[0],ary[1]+1,1)); 
459 
460 var date2 = date1.dateAdd(1,'m',1); 
461 
462 var result = dateDiff(date1.Format('yyyy-MM-dd'),date2.Format('yyyy-MM-dd')); 
463 
464 return result; 
465 
466 } 
467 
468 
469 //+--------------------------------------------------- 
470 
471 //| 取得當前日期所在周是一年中的第幾周 
472 
473 //+--------------------------------------------------- 
474 
475 Date.prototype.WeekNumOfYear = function() 
476 
477 { 
478 
479 var myDate = this; 
480 
481 var ary = myDate.toArray(); 
482 
483 var year = ary[0]; 
484 
485 var month = ary[1]+1; 
486 
487 var day = ary[2]; 
488 
489 document.write('< script language=VBScript\> \n'); 
490 
491 document.write('myDate = Datue(''+month+'-'+day+'-'+year+'') \n'); 
492 
493 document.write('result = DatePart('ww', myDate) \n'); 
494 
495 document.write(' \n'); 
496 
497 return result; 
498 
499 } 
500 
501 
502 //+--------------------------------------------------- 
503 
504 //| 字元串轉成日期類型 
505 
506 //| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd 
507 
508 //+--------------------------------------------------- 
509 
510 function StringToDate(DateStr) 
511 
512 { 
513 
514 
515 var converted = Date.parse(DateStr); 
516 
517 var myDate = new Date(converted); 
518 
519 if (isNaN(myDate)) 
520 
521 { 
522 
523 //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-'; 
524 
525 var arys= DateStr.split('-'); 
526 
527 myDate = new Date(arys[0],--arys[1],arys[2]); 
528 
529 } 
530 
531 return myDate; 
532 
533 } 
534  
535 若要顯示:當前日期加時間(如:2009-06-12 12:00)
536 function CurentTime()
537 
538 { 
539 
540 var now = new Date();
541 
542 
543 var year = now.getFullYear(); //年
544 
545 var month = now.getMonth() + 1; //月
546 
547 var day = now.getDate(); //日
548 
549 
550 var hh = now.getHours(); //時
551 
552 var mm = now.getMinutes(); //分
553 
554 
555 var clock = year + "-";
556 
557 
558 if(month < 10)
559 
560 clock += "0";
561 
562 
563 clock += month + "-";
564 
565 
566 if(day < 10)
567 
568 clock += "0";
569 
570 
571 clock += day + " ";
572 
573 
574 if(hh < 10)
575 
576 clock += "0";
577 
578 
579 clock += hh + ":";
580 
581 if (mm < 10) clock += '0'; 
582 
583 clock += mm; 
584 
585 return(clock); 
586 
587 }
588  
589 
590  
591 
592  
593 
594  
595 
596  
597 
598 ;(function(window){
599 
600     /**
601 
602      * [dateDiff 算時間差]
603 
604      * @param  {[type=Number]} hisTime [歷史時間戳，必傳]
605 
606      * @param  {[type=Number]} nowTime [當前時間戳，不傳將獲取當前時間戳]
607 
608      * @return {[string]}         [string]
609 
610      */
611 
612     var dateDiff = function(hisTime,nowTime){
613 
614         if(!arguments.length) return '';
615 
616         var arg = arguments,
617 
618             now =arg[1]?arg[1]:new Date().getTime(),
619 
620             diffValue = now - arg[0],
621 
622             result='',
623 
624  
625 
626             minute = 1000 * 60,
627 
628             hour = minute * 60,
629 
630             day = hour * 24,
631 
632             halfamonth = day * 15,
633 
634             month = day * 30,
635 
636             year = month * 12,
637 
638  
639 
640             _year = diffValue/year,
641 
642             _month =diffValue/month,
643 
644             _week =diffValue/(7*day),
645 
646             _day =diffValue/day,
647 
648             _hour =diffValue/hour,
649 
650             _min =diffValue/minute;
651  
652             if(_year>=1) result=parseInt(_year) + "年前";
653             else if(_month>=1) result=parseInt(_month) + "個月前";
654             else if(_week>=1) result=parseInt(_week) + "周前";
655             else if(_day>=1) result=parseInt(_day) +"天前";
656             else if(_hour>=1) result=parseInt(_hour) +"個小時前";
657             else if(_min>=1) result=parseInt(_min) +"分鐘前";
658             else result="剛剛";
659             return result;
660     }
661     window.dateDiff = dateDiff
662 })(window);
663  
664  
665  
666  
667