Regardless of how you interact with Xembly, we have standard defaults on time blocking unless otherwise specified:

Reminders by default are 15 minutes. Utilizing reminders is ideal for situations where you just need to check on something quickly or need a visual reminder on your calendar. The duration of reminders cannot be adjusted.

Block Time by default is 60 minutes. These blocks of time are great for heads-down work that requires a significant amount of time to execute.

The duration of Block Times can be adjusted for individual tasks within the Xembly Web App or Extension.