the time between sunrise and sunset when there is light

a period of 24 hours

दिन का समय

English Usage: We spent the entire day at the beach.

Hindi Usage: हम पूरा दिन समुद्र तट पर बिताते हैं।

a particular day in question

विशिष्ट दिन

English Usage: What day is your birthday?

Hindi Usage: आपका जन्मदिन कौन सा दिन है?