Mars Conjunct Saturn...

stars on July 29 (using a 1 degree orb), is exact on July 31 in Kilmore at 6.07pm, leaves on August 2.  Both at 0 degrees and 49 minutes of Libra.

A conjunction is generally the end of something old, and the beginning of something new.  This could be an attitude, a job, a relationship, a new understanding, etc, etc, etc... depending on where it falls in your birth chart and which houses are ruled by Mars (ones with Aries or Scorpio on the cusp) and Saturn (ones with Capricorn or Aquarius on the cusp).

Mars generally likes to work quickly, while Saturn likes to take his time... the combination can be extremely irritating and frustrating... however, it is excellent for paying attention to detail and working meticulously at something.  Again, look to see where it is to get an idea of what or may be involved.

If you have personal points and/or planets in Libra, then you may be especially sensitive to this aspect.