Times for viewing in Los Angeles: 3:06p-8:02p. From the Los Angeles Times:
The Transit of Venus of 2012 has begun, and people across the world have begun seeing a black dot of Venus coast across the sun’s disc.
“This is a once-in-a-lifetime event because it won’t happen again for another 105 years or so…. I’m pretty lucky to be alive right now,” said Chris Spellman, 40, of Monrovia, who was setting up his telescope at the Griffith Observatory.
At Caltech in Pasadena, a pep band was preparing to play Sousa’s “Transit of Venus March.” Astronomers from Mount Wilson in Southern California to Mauna Kea in Hawaii were eagerly greeting the extremely rare planetary alignment with high-powered telescopes equipped with protective solar filters. The next Transit of Venus won’t happen for 105 years. The view ends at sunset in the United States, and continues in points west — Hawaii, Asia, eastern Africa, and Europe — until just before 10 p.m. Pacific Daylight Time.
“Woohoo!” exclaimed an astrophysicist watching Venus cross the sun in Hawaii over a live NASA feed online. “Ohh, it’s amazing!” said another.