Which Days
Days of The Week and Time Expressions
Days of the Week
Days of the week are capitalized.
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Example:
Most website visitors are going to bounce off your webpage on Tuesday.
I'm going to do some geotagging on FLICKR on Monday.
When speaking about an action that is repeated every week on a specific day use the day of the week followed by 's'.
Mondays
Tuesdays
Wednesdays
Thursdays
Fridays
Saturdays
Sundays
Most people don't have broadband internet connections on Thursdays.
Most of our workers don't need access to the graphics adapter on Saturdays.
The Weekend
British English: at the weekend OR at weekends (in general)
American English: on the weekend OR on weekends (in general)
Example:
Let's hard code this function into the system on the weekend.
Let's set up a buffer on the weekend.
Times of the Day
These time expressions express things that happen during the day. The exception to this form is 'at night'.
in the morning
in the afternoon
in the evening
at night
Example:
Groucho usually clears out the cache in the morning.
Frank usually analyzes the functions to be hard coded in the morning.
In / On time
'In time' expresses that something is done with sufficient time to meet a deadline.
Example:
The components to be hard wired will be connected in time for the system upgrade.
Make sure to install the right hardware in time for the upgrade.
'On time' indicates an action that takes place at the correct, scheduled time.
Example:
The hired gun arrived on time.
The Apple clone arrived on time.