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èŠããããŸãã èªåãã¹ãããŒã«ã®å®è¡ç°å¢ãåžžã«äžçæšæºæãšã¯éããªããããååŸããããŒã«ã«ã¿ã€ã ãäžçæšæºæã«åãããåŸãæ¥æ¬æšæºæã«èª¿æŽããããšã«ããŸãã /** * çŸåšã®æ¥æ¬æšæºæå»ãè¿ããŸãã * ããŒã«ã«ã¿ã€ã ã«ãããããåžžã«æ¥æ¬æšæºæãè¿ããŸãã * @returns{string} æ¥æ */ function getJapanStandardTime() { //çŸå𿥿ãååŸ(1970 幎 1 æ 1 æ¥ 00:00:00 ããçµéããããªç§æ°ã®åœ¢åŒ) const localDateAndTime_ms = Date.now(); //ããŒã«ã«ã¿ã€ã ãšäžçæšæºæã®å·®ãååŸïŒããªç§æ°ã«åãããïŒ const localTimezoneOffset_ms = new Date().getTimezoneOffset() * 60 * 1000; //æ¥æ¬æšæºæã®ãªãã»ãããèšç®ïŒããªç§æ°ã«åãããïŒ const JAPAN_TIMEZONE = 9; const JAPAN_TIMESONE_OFFSET_ms = JAPAN_TIMEZONE * 60 * 60 * 1000; //äžçæšæºæãšã®å·®ããªãããŠããæ¥æ¬æšæºæã«ãã const utcDateTime = localDateAndTime_ms + localTimezoneOffset_ms; const japanDateTime = utcDateTime + JAPAN_TIMESONE_OFFSET_ms; return japanDatesAndTimes; } ã課é¡2ã1ç§ã§ãããããšãã¹ãã倱æããŠããŸã ç§æ°ãŸã§ã®æ¥æã確èªããå Žåãã¢ããªã®ããŒã¿ç»é²ãšçŸå𿥿ã®ååŸã1ç§ã§ãããããšäžèŽããªãã®ã§ãã¹ãã倱æããŸãã ããã§ããã¹ãæã«ãããŠã蚱容ç¯å²å
ã®æ¥æãæºåããŸãã åŒæ°ãoffset_secãã«æž¡ããç§æ°ã蚱容ç¯å²ã«ãªããŸãã /** * çŸåšã®æ¥æ¬æšæºæå»ãšãæå®ããç§æ°ã±ããæå»ã®ïŒã€ãé
åã§è¿ããŸãã * ããŒã«ã«ã¿ã€ã ã«ãããããåžžã«æ¥æ¬æšæºæãè¿ããŸãã * @param {number} offset_sec 蚱容ç¯å²å
ãšããç§æ°ã®ãºã¬ïŒç§ïŒ * @returns{arry} çŸåšæå»-offset_secãçŸåšæå»ãçŸåšæå»ïŒoffset_secã®é
å */ function getJapanStandardTime(offset_sec) { //çŸå𿥿ãååŸ(1970 幎 1 æ 1 æ¥ 00:00:00 ããçµéããããªç§æ°ã®åœ¢åŒ) const localDateAndTime_ms = Date.now(); //ããŒã«ã«ã¿ã€ã ãšäžçæšæºæã®å·®ãååŸïŒããªç§æ°ã«åãããïŒ const localTimezoneOffset_ms = new Date().getTimezoneOffset() * 60 * 1000; //æ¥æ¬æšæºæã®ãªãã»ãããèšç®ïŒããªç§æ°ã«åãããïŒ const JAPAN_TIMEZONE = 9; const JAPAN_TIMESONE_OFFSET_ms = JAPAN_TIMEZONE * 60 * 60 * 1000; const offset_ms = offset_sec * 1000; //äžçæšæºæãšã®å·®ããªãããŠããæ¥æ¬æšæºæã«ãã const utcDateTime = localDateAndTime_ms + localTimezoneOffset_ms; const japanDateTime = utcDateTime + JAPAN_TIMESONE_OFFSET_ms; const japanDatesAndTimes = []; japanDatesAndTimes.push(new Date(japanDateTime - offset_ms)); japanDatesAndTimes.push(new Date(japanDateTime )); japanDatesAndTimes.push(new Date(japanDateTime + offset_ms)); return japanDatesAndTimes; } ïŒ5ãæž¡ããå Žåã®çµæïŒ çŸå𿥿ãã€ãã¹5ç§ãçŸå𿥿ãçŸå𿥿ãã©ã¹5ç§ã®3ã€ã®æ¥æãç®åºãããŸãã (3) [Thu Feb 16 2023 18:09:29 GMT+0900 (æ¥æ¬æšæºæ), Thu Feb 16 2023 18:09:34 GMT+0900 (æ¥æ¬æšæºæ), Thu Feb 16 2023 18:09:24 GMT+0900 (æ¥æ¬æšæºæ)] 0:Thu Feb 16 2023 18:09:24 GMT+0900 (æ¥æ¬æšæºæ) {} 1:Thu Feb 16 2023 18:09:29 GMT+0900 (æ¥æ¬æšæºæ) {} 2:Thu Feb 16 2023 18:09:34 GMT+0900 (æ¥æ¬æšæºæ) {} 次ã«ãæž¡ããæ¥æã蚱容ç¯å²å
ããå€å®ããåŠçãäœæããŸãã Date.parse()ã¯æ¥ä»åœ¢åŒã®ããã¹ããæž¡ããšã1970 幎 1 æ 1 æ¥ 00:00:00 ããçµéããããªç§æ°ã®åœ¢åŒã«å€æããŠãããã¡ãœããã§ãã å
çšäœæãããgetJapanStandardTimeããäžã«å
¥ããŠããŸãã /** * åŒæ°ã§æž¡ããæ¥æããçŸå𿥿ã®Â±æå®ç§æ°ä»¥å
ã§ããããå€å®ããŸãã * @param date {string} "yyyy/mm/dd hh:mm:ss"圢åŒã®æ¥æ * @param offset_sec {number} 蚱容ç¯å²å
ãšããæéã®ãºã¬ïŒç§ïŒ * @author osushi */ function checkDateAndTimeAcceptable(date, offset_sec) { //åŒæ°ãã§ã㯠if (!offset_sec) { throw new Error("2çªç®ã®åŒæ°ãå
¥åãããŠããŸãã"); } else if (typeof(offset_sec) !== "number"){ throw new Error("offset_secã¯æ°å€ãå
¥åããŠãã ãã") } //ãã¹ãã§äœ¿çšããæ¥æãååŸ const dates = getJapanStandardTime(offset_sec); //ãã¹ãå¯Ÿè±¡ã®æ¥æãæ¯èŒå¯Ÿè±¡ã®æ¥æãããªç§è¡šèšã«ãã const dateAndTimeMinus = Date.parse(dates[0]); const dateAndTimeNow = Date.parse(date); const dateAndTimePlus = Date.parse(dates[2]); if (dateAndTimeMinus < dateAndTimeNow && dateAndTimeNow < dateAndTimePlus) { console.log("æ¥æããŒã¿ã¯èš±å®¹ç¯å²å
ã§ã"); } else { console.log("dateAndTimeMinus : ",dateAndTimeMinus); console.log("dateAndTimeNow : ",dateAndTimeNow); console.log("dateAndTimePlus : ",dateAndTimePlus); throw new Error("æ¥æããŒã¿ã蚱容ç¯å²å
ã§ã¯ãããŸãã"); } /** * çŸåšã®æ¥æ¬æšæºæå»ãšãæå®ããç§æ°ã±ããæå»ã®ïŒã€ãé
åã§è¿ããŸãã * ããŒã«ã«ã¿ã€ã ã«ãããããåžžã«æ¥æ¬æšæºæãè¿ããŸãã * @param {number} offset_sec 蚱容ç¯å²å
ãšããç§æ°ã®ãºã¬ïŒç§ïŒ * @returns{arry} çŸåšæå»-offset_secãçŸåšæå»ãçŸåšæå»ïŒoffset_secã®é
å */ function getJapanStandardTime(offset_sec) { //çŸå𿥿ãååŸ(1970 幎 1 æ 1 æ¥ 00:00:00 ããçµéããããªç§æ°ã®åœ¢åŒ) const localDateAndTime_ms = Date.now(); //ããŒã«ã«ã¿ã€ã ãšäžçæšæºæã®å·®ãååŸïŒããªç§æ°ã«åãããïŒ const localTimezoneOffset_ms = new Date().getTimezoneOffset() * 60 * 1000; //æ¥æ¬æšæºæã®ãªãã»ãããèšç®ïŒããªç§æ°ã«åãããïŒ const JAPAN_TIMEZONE = 9; const JAPAN_TIMESONE_OFFSET_ms = JAPAN_TIMEZONE * 60 * 60 * 1000; const offset_ms = offset_sec * 1000; //äžçæšæºæãšã®å·®ããªãããŠããæ¥æ¬æšæºæã«ãã const utcDateTime = localDateAndTime_ms + localTimezoneOffset_ms; const japanDateTime = utcDateTime + JAPAN_TIMESONE_OFFSET_ms; const japanDatesAndTimes = []; japanDatesAndTimes.push(new Date(japanDateTime - offset_ms)); japanDatesAndTimes.push(new Date(japanDateTime )); japanDatesAndTimes.push(new Date(japanDateTime + offset_ms)); return japanDatesAndTimes; } } ãã¹ãå®è£
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