Time Expressions: in the morning in the afternoon in the evening at night On Sundays On Mondays On Weekdays At the weekend At weekends Every Every morning. - ppt download
In, On, At – Prepositions of Time - ESLBUZZ
Sending Automation Emails on Weekdays Only - ActiveCampaign
🆚What is the difference between "On weekdays" and "At weekdays" ? "On weekdays" vs "At weekdays" ? | HiNative