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What is the last Unix time?

What is the last Un开发者_开发技巧ix time in decimal? I'm going to set it as the expiration date of cookies (using PHP). Is it possible to cause problem?


Sunday, December 4, 292,277,026,596 AD (on 64-bit systems)


For a 32-bit time_t value, you will overflow in mid to late January 2038. Specifically about 3:14 AM UTC on January 19 (actually somewhere between 3:14 and 3:15 but that should be close enough for you).

The maximum value is 231-1 or 2,147,483,647.


2147483647

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