A place name needs coordinates and a time zone
Search for a birthplace and explicitly select a result. Searching alone does not update the chart. Check the latitude, longitude and IANA time-zone name, particularly when multiple cities share a name. A named zone such as America/New_York records historical clock changes; a fixed label such as UTC−5 does not capture them all.
Daylight-saving changes can repeat or skip a time
When clocks move forward, some local times never occur. When clocks move back, some occur twice. Sky Degrees rejects an invalid or ambiguous birth instant rather than guessing. Check the original record and its UTC offset before trying again; moving a birth time simply to clear an error changes the chart’s premise.
Older records may use local mean time or a historical civil-time convention. Preserve what the source actually says. If the time basis is unresolved, a minute-looking result is not proof of a minute-accurate birth instant.
If you do not know your birth time
The current birth-chart calculator requires a time. Use the labelled example while looking for a record or a more specific recollection. A noon chart is a hypothetical time, not a recovered birth time; do not treat its Ascendant, houses or house-based readings as known personal facts.
The separate transit-date default of today at 12:00 is only a starting observation time. It does not overwrite your birth time. A saved chart or note retains its calculated observation moment.
TRY IT ON YOUR CHART
One small experiment.
- Find the local date and clock time on your birth record.
- Select the correct city and verify its time-zone name.
- After calculating, check the birth date, local time and place shown above the chart.
No account needed. Your saved notes stay in this browser.
Sources & further reading
Definitions and software documentation explain methods. They do not establish the predictive validity of astrology.