Dateオブジェクトの最大値・最小値

最小値

 > dt = new Date(-8640000000000000)
 -271821-04-20T00:00:00.000Z
 
 > dt = new Date(-8640000000000001)
 Invalid Date
 
 > dt = Date.parse("-271821-04-20T00:00:00.000Z")
 -8640000000000000
 
 > dt = Date.parse("-271821-04-19T00:00:00.000Z")
 NaN

• -271821-04-20T00:00:00.000Z

最大値

 > dt = new Date(864000000000000)
 +029349-01-26T00:00:00.000Z
 
 > dt = Date.parse("+029349-01-26T00:00:00.000Z")
 864000000000000

• +029349-01-26T00:00:00.000Z

参考

• https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Date
• https://stackoverflow.com/questions/11526504/minimum-and-maximum-date