var OneDay = new Date(); var OneYear = OneDay.getFullYear(); var comma = “ : ”; var TwoYear = OneYear + 1; var newYear = new Date(TwoYear + “/1/1”).valueOf(); var newDays = new Date().valueOf(); var ThreeYear = OneYear - 2018; var newTwoDay = ((OneDay.getMonth() + 1) + “月” + (OneDay.getDate() + “日”)); var dot = “.”; var newThreeDay = ((OneDay.getMonth() + 1) + dot + (OneDay.getDate())); // R0 → R10 = R010 | R10 Change console.log(“令和” + ThreeYear + “年” + newTwoDay + comma + “R0” + ThreeYear + dot + newThreeDay);