Used for

• 2000 A.D. date conversion (Computer systems)
• Century change problem (Computer systems)
• Date conversion problem (Computer systems)
• Millennium bug (Computer systems)
• Millennium date conversion (Computer systems)
• Two thousand, A.D., date conversion (Computer systems)
• Y2K problem (Computer systems)
• Year 2000 compliance (Computer systems)
• Year 2000 computer problem (Computer systems)
• Year 2000 computing crisis
• Year 2000 date problem (Computer systems)
• Year 2000 date-change problem (Computer systems)
• Year 2000 millennium bug (Computer systems)
• Year 2000 software crisis