This Bulletin details the procedure for testing that the system BIOS will correctly rollover from one date to the next day correctly.

The suspect dates that might give rise to problems are:-

1. 8^th September 1999 to 9^th September 1999
2. 31^st December 1999 to 1^st January 2000
3. 28^th February 2000 to 29^th February 2000
4. 29^th February 2000 to 1^st March 2000

Carry out the the following checks, note and report any failures.

SEPTEMBER CHECK

1. At BIOS level Set date to 08September1999
2. Set time to 23:50
3. Check date and time are correct.
4. Reboot the system and observe the system clock, and check that it rolls over from
   08September1999 to 09September1999 correctly; and that it continues to function correctly for the next five minutes, until the time is shown as 00:05.
5. Set date to 08September1999
6. Set time to 23:50
7. Check date and time are correct.
8. Power down the system and remove the power cord from the system. Ensure that there is no power, including UPS power, to the system.
9. Wait at least ten minutes, then connect up the power cord, and reboot the system.
   Observe the system clock, and check that it has rolled over from 08September1999 to
   09September1999 correctly: and that it continues to function correctly, for the next
   five minutes.

• NEW YEAR CHECK
1. At BIOS level Set date to 31December1999
2. Set time to 23:50
3. Check date and time are correct.
4. Reboot the system and observe the system clock, and check that it rolls over from
   31December1999 to 01January 2000 correctly: and that it continues to function correctly for the next five minutes, until the time is shown as 00:05
5. Set date to 31December1999
6. Set time to 23:50
7. Check date and time are correct.
8. Power down the system and remove the power cord from the system. Ensure that there is no power, including UPS power, to the system.
9. Wait at least ten minutes, then connect up the power cord, and reboot the system.
10. Observe the system clock, and check that it has rolled over from 31December1999 to
    01January 2000 correctly: and that it continues to function correctly, for the next
    five minutes.
    
    
• LEAP YEAR FIRST CHECK
1. At BIOS level Set date to 28February 2000
2. Set time to 23:50
3. Check date and time are correct.
4. Reboot the system and observe the system clock, and check that it rolls over from
   28February 2000 to 29February 2000 correctly; and that it continues to function correctly for the next five minutes until the time is shown as 00:05
5. Set date to 28February 2000
6. Set time to 23:50
7. Check date and time are correct.
8. Power down the system and remove the power cord from the system. Ensure that there is no power, including UPS power, to the system.
9. Wait at least ten minutes, then connect up the power cord, and reboot the system.
10. Observe the system clock, and check that it has rolled over from 28February 2000 to
    29February 2000 correctly and that it continues to function correctly for the next
    five minutes.
    
    
• LEAP YEAR SECOND CHECK
1. At BIOS level Set date to 29February 2000
2. Set time to 23:50
3. Check date and time are correct.
4. Reboot the system and observe the system clock, and check that it rolls over from
   29February 2000 to 01March 2000 correctly; and that it continues to function correctly, for the next five minutes until the time is shown as 00:05
5. Set date to 29February 2000
6. Set time to 23:50
7. Check date and time are correct.
8. Power down the system and remove the power cord from the system. Ensure that there is no power, including UPS power, to the system.
9. Wait at least ten minutes, then connect up the power cord, and reboot the system.
10. Observe the system clock, and check that it has rolled over from 29February 2000 to
    01March 2000 correctly; and that it continues to function correctly, for the next
    five minutes.
    
    
• Repeat paras 3 to 6 two more times.
  
• Reset the time and date to the current time and date.

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