Use the Actual Tomorrow Date
Open the calculator, keep or change the city, and enter tomorrow’s day, month and year. The calculator determines the weekday from that date and recalculates sunrise, sunset and all seven timing categories together.
Why the Time Can Change Overnight
Tomorrow may map Rahu Kaal to a different daylight interval because the weekday changes. Sunrise and sunset also move gradually with the season. Both effects can change the displayed start and end times.
Check the City Printed Beside the Result
A saved or shared page can be opened from another location, but the calculation still uses the selected city. Confirm the city and date beside the main result before relying on the displayed clock time.
Avoid Old Screenshots or Fixed Charts
A screenshot from a previous day can be wrong for tomorrow even if it looks similar. A fixed weekly chart can be useful for understanding the interval pattern but cannot replace the date-and-location calculation when sunrise and sunset are not exactly the chart’s assumed values.
Related: All guides · Calculation methodology · 30 city pages