תִּקְע֣וּ בַחֹ֣דֶשׁ שׁוֹפָ֑ר בַּ֝כֵּ֗סֶה לְי֣וֹם חַגֵּֽנוּ׃
Stoßet am Neumond in die Posaune, am Monatsbeginn zu unserem Festtag.
Rashi on Psalms
on the appointed time The appointed day for it, and so (Prov. 7:20): “on the appointed day (בכסה) he will come home”; to the appointed time that had been fixed.