If it’s your birthday

SAM A President will be inaugurated on Friday and NYC will suffer traffic jams all weekend.

Celebs and protesters head to Times Square for a 3 p.m. Stand Up and Sing Out! benefit concert at Town Hall on 43rd St. between Sixth and Seventh Aves. Performers include Rosie Perez, Bebe Neuwirth, Chita Rivera and others.

At 5 p.m. the Civic Center and Financial District will get hit. Thousands of demonstrators will assemble at Foley Sq. and then make their way to the Trump Building on Wall St., between William and Nassau Sts. Expect rush hour delays along Centre and Lafayette Sts., Broadway, and local cross streets. Getting to and from the Brooklyn Bridge by City Hall will be heavily affected.

A rally at Trump International on Central Park West between 59th and 61st Sts. will bring hundreds of supporters into the mix 7 p.m. tonight, causing delays on Broadway, Eighth Ave., CPW and 59th St. Around 11 a.m., they’ll start marching Happy birthday, expressive groundbreaker! Brilliant, resilient, big-hearted – and funny as anything – you delight in shocking people, often for a good cause. Freewheeling into outer worlds like birthday twins Buzz Aldrin and Federico Fellini, or challenging the status quo like Bill Maher and David Lynch, you serve to kindly wake us all up. Internally chaotic, you need a calm and private life to function. This year, wise ruler Saturn provides a time-out to heal and love thyself. Crucial as, until Oct. 10, Jupiter raises career even higher, and you come out swinging against foes who turn into fans. APRIL 20-MAY 20 You’d like everything to pleasantly balance, but achieving it has been difficult and anxiety-provoking. Certain goals still seem elusive, and with the Sun now entering your house of career, you are checking to make sure you’ve set your course in the right direction. You know one thing: You want to lead. MAY 21-JUNE 20 Run with that urge to hone your most frequently used skills. Got any new and innovative methods of how to make them more productive? Your intuition churns up deep ideas. You know plenty of interesting people willing to listen, so choose which of your many acquaintances are the most likely candidates. JUNE 21-JULY 22 After having spent time with yourself, meditating about personality issues for which you don’t ordinarily make time, you’re feeling more convivial. Maybe you’ve hit on something, wanting to actively put more effort into working on it. If choosing any self-help programs, be discriminating about them and what advice they offer. JULY 23-AUG. 22 This could prove just the right moment to look more deeply into matters close to home. A recent understanding which possibly exists through only a handshake may not be as clearly understood by both parties as they initially thought. Allow this opportunity to provide insight when creating successful future contractual agreements. AUG. 23-SEPT. 22 What’s going on around you seems to be faster paced today. As the Sun switches signs, you’re in a good place, as for you, the emphasis is on precision and being effective. With your mental energy already focused on expressing yourself, who does tidiness and getting things in order better than you? SEPT. 23-OCT. 22 You’re not feeling like you are on solid ground. Even with all the energy you’ve been expending to complete an impressive workload, you’re still worrying about all matters. It’s been quite a while since you’ve taken a break and you’d really like to enjoy yourself. If nothing else, take time out for some exercise. OCT. 23-NOV. 21 You’re experiencing conflicting emotions which swing between feeling stand offish and contemplative to wishing that you could stand out and make your mark. How your finances are doing has been sitting on you for a while, and before you make any moves, you want to be certain they’re in good order. NOV. 22-DEC. 21 Although you may not be projecting your typically boisterous self today, your energy still is being put to good use. With the Sun now in Aquarius, you’ll feel the pace of your day to day life start to pick up. Some money making ideas previously difficult to express will now find their voice. DEC. 22-JAN. 19 You’ve been finding a way to express ideas for which you couldn’t find the right words. Although not feeling energetic, you’re experiencing the type of changes that indicate you may not be the person you once knew yourself to be. A new you is coming: time to start getting acquainted. FEB. 19-MARCH 20 The Sun has entered your own familiar corner of the horoscope. You understand the valuable resources located below the surface of your consciousness. Tap into them and enhance your sensitive allure. You have the upper hand with your intuitive abilities to understand what others cannot. Proudly demonstrate the mysterious strength you possess.