Navroz is the name of the Iranian New Year, also known as the Persian New Year, which is celebrated worldwide by the Iranians, along with some other ethnolinguistic groups, as the beginning of the New Year.
Janmashtami is the day Lord Krishna was born. People visit Krishna temples on this day, conduct Puja and have a whole day of celebration. Worship the God Lord Krishna wholeheartedly on this auspicious day and seek his blessings for a prosperous and joyful life.
Krishna Jayanthi is also a popular name for Krishna Janmashtami. It is observed according to Hindu lunisolar calendar, on the eighth day of the Krishna Paksha (dark fortnight) in the month of Bhadrapada, which overlaps with August and September of the Gregorian calendar.