The cardinal number occurring after eight hundred ninety-nine and before nine hundred one, represented in Arabic numerals as 900. Ordinal: nine-hundredth.

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 cardinal number occurring after seven hundred ninety-nine and before eight hundred one, represented in Arabic numerals as 800.

The start of the eighteenth hour of the day on the 24-hour clock i.e. 17:00. / The number one thousand seven hundred. / The year 1700.

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.

The cardinal number occurring after six hundred ninety-nine and before seven hundred one, represented in Arabic numerals as 700.

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