15e878a51d41f46c563209c95512fc23919ea5f3
angie
  Fri Apr 3 14:34:27 2020 -0700
Little leap year bug (doesn't change any dates in output, but could by the end of 2020...).  refs #25188

diff --git src/hg/utils/otto/nextstrainNcov/nextstrain.py src/hg/utils/otto/nextstrainNcov/nextstrain.py
index 25317bea..2bd0c8d 100755
--- src/hg/utils/otto/nextstrainNcov/nextstrain.py
+++ src/hg/utils/otto/nextstrainNcov/nextstrain.py
@@ -83,31 +83,32 @@
     clade['countryInferred'] = countryAttrs['value']
     confString = ''
     for country, conf in countryAttrs['confidence'].items():
         if (len(confString)):
             confString += ', '
         confString += "%s: %0.5f" % (country, conf)
     clade['countryConf'] = confString
 
 def numDateToYmd(numDate):
     """Convert numeric date (decimal year) to integer year, month, day"""
     year = int(numDate)
     isLeapYear = 1 if (year % 4 == 0) else 0
     # Get rid of the year
     numDate -= year
     # Convert to Julian day
-    jDay = int(numDate * 365) + 1
+    daysInYear = 366 if isLeapYear else 365
+    jDay = int(numDate * daysInYear) + 1
     if (jDay > 334 + isLeapYear):
         month, day = 11, (jDay - 334 - isLeapYear)
     elif (jDay > 304 + isLeapYear):
         month, day = 10, (jDay - 304 - isLeapYear)
     elif (jDay > 273 + isLeapYear):
         month, day = 9, (jDay - 273 - isLeapYear)
     elif (jDay > 243 + isLeapYear):
         month, day = 8, (jDay - 243 - isLeapYear)
     elif (jDay > 212 + isLeapYear):
         month, day = 7, (jDay - 212 - isLeapYear)
     elif (jDay > 181 + isLeapYear):
         month, day = 6, (jDay - 181 - isLeapYear)
     elif (jDay > 151 + isLeapYear):
         month, day = 5, (jDay - 151 - isLeapYear)
     elif (jDay > 120 + isLeapYear):