The number one thousand eight hundred. / The start of the nineteenth hour of the day on the 24-hour clock i.e. 18:00. / The year 1800.

The start of the sixteenth hour of the day on the 24-hour clock i.e. 15:00. / The number one thousand five hundred. / The year 1500.

The number one thousand four hundred. / The year 1400. / The start of the fifteenth hour of the day on the 24-hour clock i.e. 14:00.

The start of the first hour of the day on the 24-hour clock, i.e. 0:00, military time.

The start of the twenty-first hour of the day on the 24-hour clock, i.e. 20:00.

The start of the twentieth hour of the day on the 24-hour clock i.e. 19:00. / The number one thousand nine hundred. / The year 1900.

The start of the fourteenth hour of the day on the 24-hour clock i.e. 13:00. / The number one thousand three hundred. / The year 1300.

The start of the seventeenth hour of the day on the 24-hour clock i.e. 16:00. / The number one thousand six hundred. / The year 1600.

(historical) One hundred and twenty (120), 12 × 10.

(historical, Northern England, Scotland) A long hundred: one hundred and twenty (120)