The more precise your birth time, the more accurate your chart. True solar time is derived from the hour and minute you enter — even a small difference can shift which shichen (two-hour period) applies.
If you're unsure of the exact minute, enter the closest time you know. Please note: an approximate time may place the shichen in an adjacent period, which can change your chart.
Your chart is calculated in true solar time, corrected automatically for the longitude of your birthplace. If the correction shifts the shichen (two-hour period) away from the time you entered, the chart follows the corrected result.
