It does make sense though (once you know where it comes from):
Before the ubiquity of watches, time was announced using church clocks and bell strikes. There's a big bell for hours (low pitch) and a smaller one for announcing quarters (higher pitch).
Signalling zero is not possible using "zero bell strikes", so 00:00 is signalled by 4 strikes of the quarters bell and 12 strikes of the hour bell.
Thus, the sequences go like:
11:15 1x quarter bell
11:30 2x quarter bell
11:45 3x quarter bell
12:00 4x quarter bell + 1x hour bell
Basically it makes sense then as all the quarters belong to the same hour.
Before the ubiquity of watches, time was announced using church clocks and bell strikes. There's a big bell for hours (low pitch) and a smaller one for announcing quarters (higher pitch).
Signalling zero is not possible using "zero bell strikes", so 00:00 is signalled by 4 strikes of the quarters bell and 12 strikes of the hour bell.
Thus, the sequences go like:
11:15 1x quarter bell
11:30 2x quarter bell
11:45 3x quarter bell
12:00 4x quarter bell + 1x hour bell
Basically it makes sense then as all the quarters belong to the same hour.