The 37-year-old Swedish star answered Carlos Vela's early spot-kick with a stunning equaliser, before a headed second and left-footed third to complete the ideal treble.
"I have a lot of respect for Vela, he's a good player, but you did one mistake, you compared him with me, that was your biggest mistake".
LAFC, who are on pace to break MLS records for points and goals scored this season, were controlling the offence around the hour point but all it took was one chance for Ibrahimovic to pad the Galaxy's lead. "I get adrenaline. This is considered to be the biggest game in the league and I show up in the biggest games", said Ibrahimovic. Vela's late strike took his tally to 21 for the season for MLS' leading scorer but it wasn't enough.
Vela did score both of LAFC's goals, giving him a league-best 21 goals on the season.
Just four minutes had gone when LAFC were awarded a penalty after Carlos Vela had been brought down by goalkeeper David Bingham.
Ibrahimovic evened it four minutes later when he got the feed from Julian Araujo, split defenders Walker Zimmerman and Eddie Segura and fired a shot from the top of the box that beat LAFC goalie Tyler Miller.
Military deploys to quell Cape Town gang crime READ MORE
Nadia Hopley, 36, an unemployed mother of four, said she hoped that the army's presence would make the area safer for children. There have been concerns over a delay in sending troops into the Cape Flats.
USA to send 500 troops to Saudi
Many in Congress now question the decades-old U.S. -Saudi security alliance and oppose major new arms sales to the kingdom. Central Command said the deployments to Saudi Arabia had been approved by the Pentagon.
Ruslan Asainov, American citizen, accused of becoming ISIS sniper
He stayed in contact with some people in the United States, sending messages and photographs of himself from the battlefield. One of the soldiers was "wearing a patch that identifies him as an ISIS fighter", according to the complaint.
Ibrahimovic then gave the Galaxy the lead in the 56th minute when he rose above Jordan Harvey to head Diego Polenta's cross into the back of the net.
Zlatan completed the hat-trick 14 minutes later with a superb effort from 20 yards that left the goalkeeper helpless.
Besides temporary bragging rights the two teams meet again on August 25 the Galaxy (12-8-1) moved into second place in the Western Conference with 37 points have two wins while the other two ended in ties.
"I am in playoff mode every day", said Ibrahimovic.
Vela ended the scoring with goal in the seventh minute of stoppage time with a right-footed shot into the far corner.