In transits? not long all depends on the speed of jupiter. It only stays in a sign for 12months and takes 12years to go around the full 12.
“Jupiter transits trine Venus You are feeling generous and romantic during this transit. This positive attitude can help you attract positive experiences and situations. You are very creative, and your social life is activated or enhanced. Jupiter is acting to expand your desire for pleasure, romance, and material goods as well. This is a favorable time to start a new endeavor, especially one that is intended for profit (unless, of course, there are other serious afflictions). This is also a favorable time to start a new relationship. The only potential problem associated with this transit is the tendency to be a little too carefree and to pass opportunities away with an overly optimistic attitude. Keep your eyes open to potential opportunities.” http://www.cafeastrology.com/jupitertransits.html
“Transiting Jupiter trine or sextile your natal Venus. It is favorable for romance, socializing, going to parties and anything that involves amusement. It is not a time in which you are likely to feel especially ambitious. You may notice that your popularity rises and that money and success seems to come more easily to you. You may find a new love interest. On a physical level you may notice a craving for sweets. Along with this there is the tendency to overindulge, so be careful, or you may not feel very good afterwards.” http://www.astrology-x-files.com/transits/jupiter-tr-venus.html
All transits simply act as background influences until they make a mathematical aspect to another planet or angle ie: Ascendant and Midheaven.
learn about transits
learn how to read an ephemeris, the glyphs are the shorthand for signs/planets
Time for love. If you haven’t found it yet, now could be the moment you have been waiting for. If you are not involved with anyone, you probably will find the person that you had idealized previously, but unfortunately had not been able to find until this time. At some cultural or social event, or on a trip you may meet someone especially important to you that will give you new desire for living and expanding.
If you are engaged already and have decided to get married, this period can be especially auspicious to do it, since you will find the social, family and economic support to take that step. If you are married, it is the ideal time to plan a trip, which could be a second honey moon, or unaffectedly, it will increase your level of happiness in your conjugal relationship.
Now you are impelled to enjoy your spare time, the weekend and periods of vacation with your mate, attending cultural or social events, practicing creative leisure, and in fact, revitalizing your energy with vibrant and fresh experiences. You are likely to meet many new people, have access to wider social circles, enjoy good meals, beauty, refined sensuous pleasures and assorted human relationships. All this will produce greater optimism and happiness in your general position about life; that is to say, you will see things more positively and that feeling of inner fulfillment will help you to expand more in your daily life. It isn’t solely the fact that you are going to amuse yourself more, but you will learn to re-create, that is to say, to act, think and feel more openly. Thus, the energy you invest in your work will return on itself, generating greater motivation and desire to work on what had been proposed. Fundamentally, you perceive the positive things in your life, generating renewed mental and psychic waves, expansion, idealism and “fascination” with life.
This astrological aspect also increases your personal vitality, and your sensuous capacity will be especially energized. It will be very important to you to surround the event of love with details of good taste, harmony and aesthetics. You are confirming that good taste is fundamental in the development of superior love, the same is true with art. It is not only important to have a clear idea to express art, but also to know how to express it defined, inspirational and in the right form. The same is true with love, where the feelings are fundamental, just like the ways and the environment in which it is expressed.