Manage time every 30 minutes

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Please follow the link in the "Tools" button. [How to use] ・ After launching the app, select the date to schedule from the “+” button on the top right. ・ When a date is added to the list, tap the date and enter the schedule in the specified time field in steps of 30 minutes. ・ Tap the pen icon on the left to add color. ・ Tap the hourglass icon at the right end to receive notification to your smartphone 3 minutes before that time. * If you do not receive a notification, go to “Notification”-> “Manage events in a list” from the setting application and set “Allow notification”. Please contact the review section or DM here. https://twitter.com/corasck