[LEAPSECS] happy anniversary pips

Richard Clark rclark at noao.edu
Wed Feb 12 18:53:06 EST 2014

Back in the 1974 oil crisis the US made an 'emergency' change to its
DST schedual. I don't recall the legal mechanism used. It was likely
an executive order from the President.

But it most definitely was with less than 6 months notice so the legal
precedent is exists in the US.

I also have noticed that 'critical security patches', to which linux is
less prone than some operating systems, often require action in less than 6
months from the time issued.

Richard Clark
rclark at noao.edu

On Wed, 12 Feb 2014, Hal Murray wrote:


>> E) Leap seconds are tied to observations of the earth's spin, rather than

>> predicted years in advance. With only 6 months warning for leap seconds,

>> this produces operational difficulties for many environments that have

>> burdensome change control policies.


> What do those organizations do when Congress changes the DST rules?


> Do they work on UTC/GMT so they can ignore DST? They must have to interact

> with the rest of the world occasionally.


> How much notice did people get the last time Congress changed the DST rules?

More information about the LEAPSECS mailing list