Bad Bunny has never shared a birth time, and no time with a source has ever been published. Bad Bunny was born on 10 March 1994 in Bayamón, Puerto Rico, and that day gives a Pisces Sun and an Aquarius or Pisces Moon: the Moon crossed from Aquarius into Pisces that morning. Mars and Saturn are in Pisces too, whatever the hour.
This one is simple: there is no birth time to trace. Bad Bunny hasn't given one, no birth record with a time has come to light, and Astrotheme lists the date only. Unlike many famous charts, there isn't even a rumoured hour doing the rounds.
The birthplace varies a little by source. Wikipedia, citing Britannica, gives Bayamón, and this page uses it; Bad Bunny was raised in Vega Baja, and some sites give Vega Baja or San Juan instead. All three are in Puerto Rico's single time zone, so the date, the Sun and the planets' signs come out the same whichever is used.
The Sun sits in Pisces with Mars and Saturn beside it, a rare mix of dreaminess and grit. Pisces is the sign of imagination, empathy and feeling for a crowd. Mars there works by instinct and fights for others, and Saturn close by gives it the patience to keep going until a vision is real. The Sun also makes a gentle sextile to Neptune in Capricorn, adding a feel for atmosphere and sound.
Mercury in Aquarius thinks independently and likes ideas nobody has tried yet. Venus sits in the first degrees of Aries, so taste is bold, playful and happy to go first. Jupiter in Scorpio, a fellow water sign, brings depth and loyalty, and Pluto meets the North Node in Scorpio too, a pull toward transformation and reinvention.
The Moon is the one open question. Before the morning crossing it was in Aquarius: original, sociable and loyal to a community. After it, the Moon was in Pisces, close to Mars: tender, intuitive and quick to act on a feeling. Both are generous Moons.
A birth time would answer two things at once. It would show the rising sign and the houses, the parts of a chart that shift every few minutes, and it would settle the Moon. A birth before about 9:10 am local time gives the Aquarius Moon; any time after that gives the Pisces Moon.
With no candidate times around, there is nothing to test here, and the rising sign could be any of the twelve. If Bad Bunny ever shares the hour, the rest of the chart will fall into place quickly.