No, Seventh Day Adventist recognise the sabbath as a day of rest. This is from sunset Friday to Sunset Saturday. All work including cooking must be done before or after this time
sunset times change constantly. For example on Saturday 15th August 2009 the sun sets at 20:23. The following Saturday the sun sets at 20:08 and so on.
It depends. If they were Jewish, they were probably fishing. The Sabbath actually starts Friday at sunset to Saturday at sunset. In the time of Jesus they would have observed the true Sabbath.
Shabbat is observed on the seventh day of the week. It begins at sundown on our Friday night, and ends at sundown on our Saturday night. Jews observe the Shabbat (Sabbath) on Saturday. According to Jewish tradition, that means the period of time between Friday sunset and Saturday sunset.
The official sunset time in San Francisco on October 31, 2009, is 6:12 PM. NOTE: California is a big place and sunset time can vary from place to place, depending on where you stand. But it will probably not vary by more than 2-3 minutes from the sunset time in San Francisco.
Days begin and end from sunset to sunset just as the Creation account in Genesis notes. So the Sabbath began on sunset May 1st and ended sunset May 2nd - our Friday night and Saturday day.
The question is recorded as having been asked on the 19th of February 2012, but it would depend on your time zone, so it may have been the 18th of February 2012 where you were at the time. The 18th of February 2012 was a Saturday.
The Sabbath is the period of time that begins shortly before sunset on Friday evening and ends shortly after sunset on Saturday evening. Those who choose to observe it do so during that interval.