Calendars
**Warning**
Not all Calendar clients allow real-time sync
Make sure to use a calendar app that allows real-time sync. This is typically not a problem for things like Rent Expirations and option periods, but as you start building out events and notebook tasks the delay can cause confusion.
| Client | Typical Delay | Can force refresh |
|---|---|---|
| Outlook Desktop | yes | |
| Thunderbird | yes | |
| Google Calendar | 8 hours | no |
| Outlook online | no | |
| Apple Calendar | 8 hours | no |