Nowadays, the calendar. Years ago, the lunar cycle (approximately). Even more approximately, the seasons.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

In older times by boat and nowadays they get there by air.

Nowadays we do laundryin adryer.

One cycle, in a computer, takes a time that is the reciprocal of the computer's clock rate - that which is expressed in MHz, or - more commonly nowadays - in GHz. Example: if your computer has a clock rate of 3 GHz, the time for a single cycle is (1 / 3 billion) seconds, i.e., 1/3 of a nanosecond, or 333 picoseconds.

A lot nowadays!! A lot nowadays!!