根据地区不同显示时间的javascript代码_javascript技巧

by tingting 

<script> <BR><!-- Begin <BR>var timerRunning = false; <BR>var timezone = "格林尼治标准时间"; <BR>var adjust = 0; <br><br>function timeCheck(tzone, diff) { <BR>if (timerRunning) { <BR>clearTimeout(updatetime); <BR>timerRunning = false; } <BR>gmtOffset=eval(diff+adjust); <BR>timezone = tzone; <BR>checkDateTime(); <BR>} <br><br>function checkDateTime () { <BR>var today = new Date(); <BR>var year = today.getYear() + 00; <BR>var month = today.getMonth()+1; <BR>var date = today.getDate(); <BR>var day = today.getDay(); <BR>var hour = today.getHours(); <BR>var minute = today.getMinutes(); <BR>var second = today.getSeconds(); <br><br>var lastSat = date - (day+1); <BR>while (lastSat < 32) lastSat+=7; <BR>if (lastSat > 31) lastSat+=-7; <BR>var firstSat = date - (day+1); <BR>while (firstSat > 0) firstSat+=-7; <BR>if (firstSat < 1) firstSat+=7; <BR>if ((((month == 4) && (date >= firstSat)) || month > 4) && <BR>(month < 11 || ((month == 10) && day <= lastSat))) adjust += 60; <BR>yourOffset = (new Date()).getTimezoneOffset(); <BR>yourOffset = yourOffset + adjust; <br><br>var xx = navigator.appName <BR>var xy = navigator.appVersion; <BR>xy = xy.substring(0,1); <BR>if ((xy == 4) && (xx == "Netscape")) yourOffset = yourOffset+adjust; <BR>if ((((month == 4) && (date > 20)) || month > 4) && (month < 11 || ((month == 10) && <BR>day < 30))) adjust -= 60; <br><br>ourDifference = eval(gmtOffset - yourOffset); <BR>var half = eval(ourDifference % 60); <BR>ourDifference = Math.round(ourDifference / 60); <BR>hour = eval(hour - ourDifference); <BR>var m = new Array("", <BR>"1","2","3", <BR>"4","5","6", <BR>"7","8","9", <BR>"10","11","12"); <BR>var leap = eval(year % 4); <br><br>if ((half == -30) || (half == 30)) minute += 30; <BR>if (minute > 59) minute -= 60, hour++; <BR>if (minute < 0) minute += 60, hour--; <BR>if (hour > 23) hour -= 24, date += 1; <BR>if (((month == 4) || (month == 6) || <BR>(month == 9) || (month == 11)) && (date==31)) date = 1, month ++; <BR>if (((month == 2) && (date > 28)) && (leap != 0)) date = 1, month ++; <BR>if ((month == 2) && (date > 29)) date = 1, month++; <BR>if (hour < 0) hour += 24, date --; <BR>if ((date == 32) && (month == 12)) month = m[1], date = 1, year++; <BR>if (date == 32) date = 1, month++; <BR>if ((date < 1) && (month == 1)) month= m[12], date = 31, year--; <BR>if (date < 1) date = 31, month --; <BR>if (((month == 4) || (month == 6) || <BR>(month== 9) || (month == 11)) && (date == 31)) date = 30; <BR>if ((month == 2) && (date > 28)) date = 29; <BR>if (((month == 2) && (date > 28)) && (leap != 0)) date=28; <BR>for (i=1; i<13; i++) { <BR>if (month == i) { <BR>month = m; break; <BR> } <BR>} <br><br>var dateTime = hour; <BR>dateTime = ((dateTime < 10) ? "0":"") + dateTime; <BR>dateTime = " " + dateTime; <BR>dateTime += ((minute < 10) ? ":0" : ":") + minute; <BR>dateTime += ((second < 10) ? ":0" : ":") + second; <BR>dateTime += (hour >= 12) ? "下午, " : "上午, "; <BR>dateTime += year + "年" + month + "月" + date + "日" ; <br><br>document.clock.zonetime.value = dateTime; <BR>document.clock.zonename.value = timezone; <BR>updatetime=setTimeout("checkDateTime()", 900); <BR>timerRunning = true; <BR>} <BR>// End --> <BR></script>

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