2. Introduction
๏ Time is not a measurable
life-factor
๏ Compter Sciences engineers
enclosed time as Timestemp
3. The Timestamp
๏ Mechanism to store datetime
values as a standard time
format
๏ Number of elapsed seconds since
1/1/1970 00:00 UTC
๏ Coded on a 32-bit signed
integer (2^31 -1)
4. What’s the Y2K38
bug?
๏ Time limit: 01111111 11111111
11111111 11111111
๏ 2^31 – 1 = 2,147,483,647 seconds
๏ Limit will be reached on Tuesday
19th, January 2038 at 03:14:07 (UTC)
๏ Back to Friday 13th, December 1901,
20:45:52 (UTC)
5. Any solution?
๏ Switching all computers to
64-bit architecture
๏ Update programs to manage
64-bits timestamp format
๏ Update internal time_t core
library
6. Conclusion
๏ Don’t worry!
๏ 30 years to get prepared
and solutions already
exist
๏ No need to make a Y2K-like
ado!
7. Question 0001
Why timestamp creators
didn’t think about this
leak on time?
