Jewish prayer to mark a transition to something new

SHEHECHEYANU V'KIYAMANU V'HIGIYANU LAZMAN HAZEH

Jewish prayer to mark a transition to something new:
"(Blessed are you, God, Ruler of the universe,)
Who gives us life, sustains us, and brings us to this time/season."

It is said at the start of a holiday, to acknowledge the return of the cycle of the year; and even when eating a fruit for the first time in a season or wearing a new set of clothes. - Rabbi Avivah Winocur Erlick