4 ms·
I may be mistaken, but for this 9x9 they may mean five 9 hour days, the weekend, four 9 hour days, three day weekend.
by DerArzt 5y ago
I may be mistaken, but for this 9x9 they may mean five 9 hour days, the weekend, four 9 hour days, three day weekend.
- jcims 5y agoCould be. My step-dad was just telling me about his night shift at AT&T in the 70's doing operations for switching sytems. They would to 10 8's in a row b/c it was hard for them to stay on the night shift schedule over the weekends, so this just let them stretch the weekend. He really liked it.
- robotresearcher 5y agoThat's right. Often called '9-80' and was pretty popular in aerospace.