A lunisolar calendar is a calendar in many cultures, incorporating lunar calendars and solar calendars. The date of lunisolar calendars therefore indicates both the Moon phase and the time of the solar year, that is the position of the Sun in the Earth's sky. If the sidereal year is used instead of the solar year, then the calendar will predict the constellation near which the full moon may occur. As with all calendars which divide the year into months there is an additional requirement that the year have a whole number of months. In some cases ordinary years consist of twelve months but every second or third year is an embolismic year, which adds a thirteenth intercalary, embolismic, or leap month.

चान्द्र-सौर पञ्चाङ्ग उन पंचांगों को कहते हैं जिसकी तिथियाँ चन्द्रमा की कला भी दर्शातीं हैं और सौर वर्ष का समय भी। चान्द्रसौर पंचांग का उपयोग कई संस्कृतियों में होता है जिसमें हिन्दू पञ्चाङ्ग और जैन पंचांग प्रमुख है।