Calendar constitutes an important element of a ruler's plicy to control the people and to lead to the achievement of the ruler's political agenda. The Prophrt Mohamed, as a ruler of society, also utilizes the calendar to achieve his main mission to make the society worship to one God(Tauhid). In the case of Javanese Ruler, Sultan Agung, he utilizes the Javanese calendar to maintain the Islamic-Javanese stncretism teaching.