weekly recurring event without day mention

Hi @Pragati Pandey, 

Thank you for posting your question on the Microsoft Q&A forum. 

Regarding your question about migrating recurring events from Google Calendar to Outlook:  If a Google Calendar event is created as a recurring event without explicitly specifying the day of the week (only a start date and time), Google automatically interprets it as recurring weekly on the same day as the start date. 

When such an event is migrated to Outlook, this behavior is preserved. In other words, the event will recur once per week on the original start day, not daily. 

Example:  If you create a recurring event in Google Calendar starting on Sunday and set it to repeat weekly without selecting specific days, after migration to Outlook the event will appear every Sunday (for example: April 19, April 26, and so on). 

Sunday 19/04, Monday 20/04 

Sunday 26/04, Monday 27/04 

Thank you again for your time and understanding. If this doesn’t fully address your scenario or if you notice different behavior, please feel free to share additional details so I can assist you further. 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread   

In Outlook (and in Microsoft Graph/Outlook APIs), a weekly recurrence must specify the day or days of the week in the recurrence pattern. The daysOfWeek property is required for a weekly pattern and determines on which day(s) the event occurs.

Because daysOfWeek is required, a “weekly but no day specified” rule is not valid in Outlook’s recurrence model. When migrating from Google:

• The event must be mapped to a valid Outlook weekly pattern by choosing at least one day in daysOfWeek.
• The natural and consistent mapping is to use the start date’s weekday as the weekly recurrence day (so it recurs once a week on that same weekday), matching Google’s behavior.
• Mapping it as “every day” would be incorrect, because that would correspond to a daily pattern (type: "daily" with interval: 1), not a weekly one.

So, when migrated correctly, such an event should recur once a week on the same weekday as its start date, not every day.

References:

• Schedule repeating appointments as recurring events in Outlook
• Get started with the Outlook Calendar
• Create a recurring appointment that has a weekly pattern