The traditional way of doing this was to divide the time between a day's sunrise and sunset by 12 and then serve the period for each Hora for that day. But nowadays, this has become easier with InstaAstro's Hora Muhurat calculator. It can easily calculate the planet Horas, The Panchang and other necessary details required to calculate the appropriate time for any work. This calculator will give you the Hora chart for today or any day you want.