Daylight Saving Time
Very often radio clocks have bugs in their software relating to daylight saving time (DST). This often leads to clocks not updating themselves to the correct civil local time when DST transitions on to off or off to on. Clocks that interpret longwave stations tend to be the most affected due to very minimal low level software (often hand coded assembler, or compiled C) used to decode and display the time signal.
On some systems, notably WWVB, DST is much less an issue because part of the transmitted timecode contains a "DST is now in effect" flag. Therefore even if a change in law occurs which changes the transition days (the most common change), the transmitted timecode will be updated and the clock's software only needs to pay attention to this DST flag. The only change which would typically cause DST transition problems would be if the transition time were to change (e.g. 0200 hours local time).
Read more about this topic: Radio Clock
Famous quotes containing the words daylight, saving and/or time:
“one pale woman all alone,
The daylight kissing her wan hair,
Loitered beneath the gas lamps’ flare,
With lips of flame and heart of stone.”
—Oscar Wilde (1854–1900)
“We black women must forgive black men for not protecting us against slavery, racism, white men, our confusion, their doubts. And black men must forgive black women for our own sometimes dubious choices, divided loyalties, and lack of belief in their possibilities. Only when our sons and our daughters know that forgiveness is real, existent, and that those who love them practice it, can they form bonds as men and women that really can save and change our community.”
—Marita Golden, educator, author. Saving Our Sons, p. 188, Doubleday (1995)
“... women are more quiet. They don’t feel called to mount a barrel and harangue by the hour every time they imagine they have produced an idea.”
—Anna Julia Cooper (1859–1964)