3523073 - datediff(hh) function returned unexpected value - SAP ASE

• In the following query, which uses datediff() to display the time(hour) difference between the local time and UTC time, the function may return an unexpected time.
  

  For example, current timezone is JST(UTC -9)
  So "-9" is the expected value in this case.

  *Repeat this query several times:

  1> select getdate(), getutcdate(), datediff(hh,getdate(),getutcdate())
  2> go

   ------------------------------- ------------------------------- -----------
               Sep 24 2024  3:37PM             Sep 24 2024  6:37AM          -9   <===OK

  (1 row affected)

  1> select getdate(), getutcdate(), datediff(hh,getdate(),getutcdate())
  2> go

   ------------------------------- ------------------------------- -----------
               Sep 24 2024  3:37PM             Sep 24 2024  6:37AM          -8    <===NG

  (1 row affected)

• SAP Adaptive Server Enterprise (ASE) 16.0

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , Problem