https://bugs.documentfoundation.org/show_bug.cgi?id=147825
--- Comment #3 from L.H. Carsten <i...@lhcarsten.org> --- Further experimentation shows that if one adds cells already formatted as time, the result WILL exceed the maximum earlier mentioned. Obviously the format of the cell with the sum value needs to use the brackets. -- You are receiving this mail because: You are the assignee for the bug.