Blessings: Rainbows: Looking and Blessing

The blessing over rainbows is zocheir ha'brit v'ne'eman bi'vrito, v'kayam b'ma'amaro
Note You may not gaze at a rainbow, but you may look at it for up to 2.5 seconds, then look away, and then look back repeatedly an unlimited number of times.

NOTEDon't tell other people that a rainbow is visible. But if they see you looking or hear you saying the blessing, you may tell them that there is a rainbow and you may tell them the correct blessing to say.