History of the measurement of time

1. Time measuring devices

1.1. Sundial

1.2. quartz watch

1.3. chronometer

1.4. digital watch

2. Physical definition

2.1. Classical mechanics

2.2. modern physics

2.3. spacetime

2.4. time dilation

2.5. arrow of time

3. Use of time

3.1. sociology

3.1.1. time discipline

3.2. anthropology

3.3. technology

4. Time in religions

4.1. Linear and Cyclical

4.2. Numeric and Divine