Health scientists are becoming more and more interested in the citrulline content of watermelon. Citrulline is an amino acid that is commonly converted by our kidneys and other organ systems into arginine (another amino acid). The flesh of a watermelon contains about 250 millligrams of citrulline per cup.
The Julian day or Julian day number (JDN) is the number of days that have passed since the initial epoch defined as noon Universal Time (UT) Monday, January 1, 4713 BC in the Julian calendar. That noon-to-noon day is counted as Julian day 0. Thus the multiples of 7 are Mondays.
Second, it does not support numbers greater than 5,373,484, which is the date 9999-12-31 in Julian days. Third, since the Julian calendar does not have a year zero in it the technique fails for numbers between 1,721,058 (which would be 0000-01-01) and 1,721,423 (which would be 0000-12-31).