Hello John S., I am sorry to hear that you have encountered this issue with setting the Next Game time. To rule out possible causes, please carefully work through these steps of our guide to Solving Technical Issues ? Step 1: Make sure to use the right browser Please check if these issues persist when using both Chrome and Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20 Please disable all add-ons/extensions. Step 3: Clear your cache If none of the above succeeds, please thoroughly work through Step 4 . Be sure to also include the name of the Campaign and Console Log. Thank you!