Our modern astrology software contains excellent databases, but when a client was born in Illinois during a period when Daylight Savings Time was observed it can get very confusing because there was a law in Illinois in effect until 1959 which required birth times to be recorded in standard time even when daylight time was observed. So you may have a situation in which the baby book says daylight time but the birth certificate, which usually doesn’t include daylight or standard time, will be an hour off.
This often comes up with my clients and I thought it would be useful to have this information here on the blog in case others were searching online for details about this.
The hour of birth has been recorded on Illinois birth certificates ever since the state central registry was established in 1916. Prior to July 1, 1959, United States Standard Time was used in reckoning the date and time of occurence in the preparation of official certificates of births, stillbirths and deaths, regardless of whether or not Daylight Saving Time, War Time, or any other advanced time, by whatever term known, was in effect..