Better DST handling
h/t @lalomartins @lemmingworks Closes #1332 and related date issues
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@ -32,15 +32,21 @@ function evert_arr(obj/*:any*/)/*:EvertArrType*/ {
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}
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var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
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var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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function datenum(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
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var epoch = v.getTime();
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if(date1904) epoch -= 1462*24*60*60*1000;
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var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
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}
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var refdate = new Date();
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var dnthresh = basedate.getTime() + (refdate.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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var refoffset = refdate.getTimezoneOffset();
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function numdate(v/*:number*/)/*:Date*/ {
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var out = new Date();
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out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
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if (out.getTimezoneOffset() !== refoffset) {
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out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
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}
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return out;
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}
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4
test.js
4
test.js
@ -1422,10 +1422,10 @@ function seq(end/*:number*/, start/*:?number*/)/*:Array<number>*/ {
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}
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var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
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var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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function datenum(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
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var epoch = v.getTime();
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if(date1904) epoch += 1462*24*60*60*1000;
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if(date1904) epoch -= 1462*24*60*60*1000;
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var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
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}
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var good_pd_date = new Date('2017-02-19T19:06:09.000Z');
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@ -2751,15 +2751,21 @@ function evert_arr(obj/*:any*/)/*:EvertArrType*/ {
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}
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var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
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var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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function datenum(v/*:Date*/, date1904/*:?boolean*/)/*:number*/ {
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var epoch = v.getTime();
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if(date1904) epoch -= 1462*24*60*60*1000;
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var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
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}
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var refdate = new Date();
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var dnthresh = basedate.getTime() + (refdate.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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var refoffset = refdate.getTimezoneOffset();
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function numdate(v/*:number*/)/*:Date*/ {
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var out = new Date();
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out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
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if (out.getTimezoneOffset() !== refoffset) {
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out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
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}
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return out;
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}
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8
xlsx.js
generated
8
xlsx.js
generated
@ -2672,15 +2672,21 @@ function evert_arr(obj) {
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}
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var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
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var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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function datenum(v, date1904) {
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var epoch = v.getTime();
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if(date1904) epoch -= 1462*24*60*60*1000;
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var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
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}
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var refdate = new Date();
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var dnthresh = basedate.getTime() + (refdate.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
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var refoffset = refdate.getTimezoneOffset();
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function numdate(v) {
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var out = new Date();
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out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
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if (out.getTimezoneOffset() !== refoffset) {
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out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
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}
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return out;
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}
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