And at that time there will be no hunger or war, no jealousy or rivalry. For the good will be plentiful, and all delicacies available as dust. The entire occupation of the world will be only to know G-d... the people Israel will be of great wisdom; they will perceive the esoteric truths and comprehend their Creator's wisdom as is the capacity of man. As it is written (Isaiah 11:9): "For the earth shall be filed with the knowledge of G-d, as the waters cover the sea."
Maimonides (Mishneh Torah, Laws of Kings 12:5)
Dawn (Alot Hashachar)
Earliest Tallit and Tefillin (Misheyakir)
Sunrise (Hanetz Hachamah)
Midday (Chatzot Hayom)
Nightfall (Tzeit Hakochavim)
Midnight (Chatzot HaLailah)