What does a yellow porch light mean? Yellow porch lights are bug lights. By bug light I mean they are not supposed to attract bugs as bad as regular light bulbs.
GPS Week Number Rollover. The GPS Week Number count began at approximately midnight on the evening of 05 January 1980 / morning of 06 January 1980. Since that time, the count has been incremented by 1 each week, and broadcast as part of the GPS message. The GPS Week Number field is modulo 1024. This means that at the completion of week 1023, the GPS week number rolled over to 0 on midnight GPS Time of the evening of 21 August 1999 / morning of 22 August 1999. Note that this corresponded to 23:59:47 UTC on 21 August 1999.
Format cells to show dates as the day of the week. 1  Select the cells that contain dates that you want to show as the days of the week. 2  On the Home tab, in the Number group, click the arrow, click More Number Formats, and then click the Number tab.