When someone’s birth time is unknown, looking at the timing of major events in their life can often be misleading.
Looking at the areas of life in which those events occurred offers a more reliable approach. This is because the houses divide the chart by subject, not by time. Our purpose in finding the birth time is to identify those areas of life.
The aim is to establish which sign corresponds to the first house of the chart. This means identifying a roughly two-hour window. Once your birth time is known within the window that gives you the correct rising sign, your birth chart can be read.