> wa'DIch would have been better. A bI'reS is the beginning of some artistic performance, not a job.

While I don't necessarily disagree with you, paq'batlh (paq'raD, Canto 14, Stanza 6) does give a precedent for using bI'reS as a timestamp.

bI'reS qeylIS vaq molor

"First, Molor taunted Kahless."

Marc Okrand also used it to refer to the beginning of a stretch of time in Message to Kronos:

https://www.youtube.com/watch?v=ujliyG96Cf8

ghorgh lumuch? poH tuj bI'reS nungbogh wa' jaj qeylIS DIS chorghvatlh loSmaH jav qaStaHvIS.

"When [will it be shown], you ask? In the days that follow the summer solstice in the Year of Kahless 846."

maj. tawIj vIlughmoH.

-- 
SuStel
http://trimboli.name