(date->string (julian-day->date 1730000 0) "~4"))
(pass-if-equal "2000-01-01T00:00:00Z" "2000-01-01T00:00:00Z"
(date->string (julian-day->date 4903089/2 0) "~4"))
+ (pass-if-equal "9999-12-31T12:00:00Z" "9999-12-31T12:00:00Z"
+ (date->string (julian-day->date 5373484 0) "~4"))
+ (pass-if-equal "+10000-01-01T12:00:00Z" "+10000-01-01T12:00:00Z"
+ (date->string (julian-day->date 5373485 0) "~4"))
(pass-if-equal "negative julian days"
'((-2000000 . "-10188-02-01T14:24:00Z wk=04 dow=6 doy=032")
(-20000 . "-4767-02-20T14:24:00Z wk=08 dow=0 doy=051")