・Features of the WorldTimeCalc
・Graph of day/night and working hours in each city. - Day and night time will be updated automatically every day. Working hours can be changed manually for each city.
・By sliding the cursor, the time for each city will change in the list.
・In normal times, the cursor points to the current time in real time, so you can see at a glance whether it is daytime, nighttime, during business hours, or outside in each city.
・You can send alarm notifications for sunrise, sunset, start time, and end time.