The date given on the Yahrzeit list is the civil date calculated from the actual Hebrew date of death. The Yahrzeit is observed from sunset on the night before until sunset of the day given.
Observance of the Yahrzeit includes lighting a twenty-four hour candle the night before and coming to services to recite Kaddish. Both men and woman should fulfill this observance. The name of the loved one is read from the Bimah at the Shabbat services on Friday night and Saturday morning. If the observer would like an honor such as opening the Ark, an Aliyah, etc. please call Rabbi Scolnic.
Lighting a yahrzeit candle in memory of a loved one is a minhag (custom). While it is not required by halakhah (Jewish law), it is so deeply ingrained in Jewish life, it is difficult to imagine not doing so, and doing so honors the memory of those no longer with us in life. Traditionally, the relationships for whom we light a candle are the same as those for whom we say Kaddish: parents, spouse, siblings, and children.
An act of generosity in memory of a loved is part of our religious tradition. Contributions to TBS are promptly acknowledged.