byte - How many days can I store in 4 bytes with millisecond precision?

Question

now I meet a issue to research how many days can I store in 4 bytes with millisecond precision. who knows that? thanks

Answer 1

4バイト=2^ 32 =42949672961日=24* 60 * 60*1000ミリ秒=86400000

4294967296/86400000 = 49.71026962962962962962962962963

または約49日17時間2分47秒

Answer 2

Javaでこの方法を見つけてください：

System.out.println(((long)Integer.MAX_VALUE - Integer.MIN_VALUE) / 1000f / 60 / 60 / 24);