Morning and evening tasks are planned differently — a daytime meeting and a list of after-work errands don’t sit well in the same list. To separate them, the mobile app has an Evening start time setting. Tasks scheduled after the chosen time automatically go into a separate This Evening section inside the Today view. The same setting also affects how the app recognizes the word “evening” in task names.
The setting is available only in the mobile app (iOS and Android). On desktop, the This Evening section exists too, but the threshold time there is hardcoded at 6:00 PM and can’t be changed — changing the setting in the mobile app won’t affect the desktop’s behavior.