There is no particular date for meditation. And also it is not necessary that people have to be in India to experience the fruit from meditation. Though it is true that there are so many suitable places available for mediation in India, there are also quite similar places all over the world. Good place and a calm mind is very important for meditation.
Choosing a good place to meditate is very important. Not all the places will be suitable for meditation. It can be quite difficult to concentrate in a noisy place when the noise is not so pleasant to the ears. Choosing a calm place will help in reaching the meditation state. There are also noisy places like beach, waterfalls, riverbed etc, however they are soothing for the ear and suitable for meditation. Usually natural places are more comfortable compared to that of other places.
Calm mind is not a mandatory requirement because it is difficult to always have a calm mind. Calm mind is an outcome of meditation so it is not expected to have it before hand. However if a person can manage to have calm mind before doing meditation, reaching meditation state can be very easy.
If we check advanced aspects of meditation, day also plays a vital role. According to astrology, there are some best days in the year that can be completely suitable for divinity and meditation. But it is not quite straight forward to decide the best day for meditation. There are lots of parameters to be checked before arriving at a best day for meditation.