def to_jd(year, month, day):
return (day + ceil(<NUM_LIT> * (month - <NUM_LIT:1>)) + (year - <NUM_LIT:1>) * <NUM_LIT> + trunc((<NUM_LIT:3> + (<NUM_LIT:11> * year)) / <NUM_LIT:30>) + EPOCH) - <NUM_LIT:1><EOL>
Determine Julian day count from Islamic date