According to the sages of India, the best times to meditate are when night changes into day and day changes into night. In other words, sunrise and sunset hours are the best times for meditation. Yogis have observed at around sunrise and sunset the mind naturally becomes calm and serene. A calm and serene mind is most conducive to meditation. Nevertheless, if you have difficulty meditationg at those hours, you may meditate whenever convenient. But you should try to meditate at the same time every day.
Yogis also consider noon and midnight suitable for meditation. Many all-renouncing monks and Yogis meditate at noon and in the stillness of the midnight hours. However, these times may not be suitable for those who have to work for a living. Meditation at midnight is difficult for most people because they may feel sleepy.
Meditation is best practiced in the early hours of the morning and at dawn; one should also meditate daily after dusk. ― Sri Ramakrishna
The best time for practice is the junction of day and night, the calmest time in the tides of our bodies, the zero point between two states. If this cannot be done, practise upon rising and going to bed. ― Swami Vivekananda
The best time for meditation is midnight. You can then achieve results very soon. Nature is in a quiet mood then and the concentration is easier. (Vij. Disc. p. 115, Vij. Say. p. 57) ― Swami Vijnanananda
The best time for meditation is midnight. You can then achieve results very soon. Nature is in a quiet mood then and the concentration is easier. The environmental conditions also are favourable at that time. (Vij. Disc. p. 115, Vij. Say p. 57 sim.)
Look here, my son, you should make intensive japa at dead of night. That is the best time for japa and meditation. (For Seekers p. 256) Swami Shivananda
Now dive deep into prayer, meditation, etc. Eat very little at night, and engage yourself in japa and meditation. Night is, in fact, the best time for japa and meditation. (For Seekers p. 290)
When all fall asleep at dead of night, rise up to call on Him with your whole being, and become one with Him. Tell Him of the yearning of your heart with tears in your eyes. Midnight is the best time for spiritual practices… Be up and doing at the beginning, and you will find that your whole being will be filled with an ineffable joy; you will lose yourself in the current of that inebriating bliss. Can there be any comparison of that with the hollow joys of this world? (For Seekers p. 162)
God is always supposed to be perceived more clearly at the point of meeting between the two opposite poles. He is neither light nor darkness, but He is beyond both. He is to be found just where they meet. Hence the twilight hour, morning and evening — the meeting place of day and night — is considered the best time for meditation. Also at noon-time, just when the sun reaches its highest point and begins to drop down towards night. The voice rises to its highest pitch at that hour and even the cries of the street-vendors grow shriller. As sound and mind are inseparably connected, sound being the primary expression of mind, so the mind also reaches its greatest height at noontime. (Days p. 94, Ded. Life p. 188) – Swami Ramakrishnananda
Meditate four times regularly each day. The best times are early in the morning, at midday, at sunset, and at midnight. Be steadfast in your ideal even when the mind is restless. Keep up the regularity of your practices under all conditions. (Et. Comp. p. 222) – Swami Brahmananda