The calendar settings control how your calendar looks – which day the week starts on, which days are highlighted in red, and how week numbers are displayed.
Basic settings
First day of the week
Choose which day your week starts on. You can pick any day from Monday to Sunday.
Days marked red
Choose which day(s) should appear in red in the calendar – typically used to highlight weekends or public holidays.
Days marked blue
Choose which day(s) should appear in blue in the calendar – useful to visually distinguish a second group of days, for example the start of the working week.
Week numbers
Week numbers are used in many countries, but the rules for counting them differ around the world. aCalendar lets you choose which system to use – or turn them off entirely.
Off
Week numbers are not shown.
Android OS
Uses the week numbering that Android automatically applies for your region.
ISO / Europe
Week 1 starts on the Monday nearest to January 1st. This is the standard used in most of Europe.
America / Japan
Weeks start on Sundays, and January 1st is always in week 1.
Custom
Define your own week numbering. Two options are available:
- Annual reset – e.g. week 1 always starts on the first Monday in April
- Fixed cycle – e.g. a repeating 72-week cycle starting on a specific date
Seeing week numbers as calendar events?
These are coming from a subscribed Google Calendar, not from aCalendar itself. To remove them, go to the Calendar List (Menu → Manage Calendars) and turn off that calendar.