24-hour clock 12-hour clock; 00:00: 12.00a.m. - midnight 01:00: 1:00 a.m. 02:00: The 24-hour clock is a way of telling the time in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 24.
Philosophy is the study of underlying things. It tries to understand the reasons or basis for things. It also tries to understand how things should be. "Philosophia" is the Ancient Greek word for the "love of wisdom".