Ensure tests pass with system language other than English

Author: ERSUCC

src/main/primitives/TimePrimitives.scala

@@ -2,11 +2,11 @@ package org.nlogo.extensions.time.primitives
 
 import java.time.format.DateTimeFormatter
 import java.time.format.ResolverStyle.STRICT
-import org.nlogo.api.Argument
-import org.nlogo.api.Context
-import org.nlogo.api.Reporter
-import org.nlogo.core.Syntax
+
+import org.nlogo.api.{ Argument, Context, Reporter }
+import org.nlogo.core.{ I18N, Syntax }
 import org.nlogo.nvm.ExtensionContext
+
 import org.nlogo.extensions.time._
 import org.nlogo.extensions.time.datatypes._
 
@@ -56,8 +56,8 @@ object TimePrimitives {
       val fmtString: String = TimeUtils.getStringFromArgument(args, 1)
       val fmt =
         if (fmtString.trim().==(""))
-          DateTimeFormatter.ofPattern("uuuu-MM-dd HH:mm:ss.SSS").withResolverStyle(STRICT)
-        else DateTimeFormatter.ofPattern(fmtString.replace('y','u')).withResolverStyle(STRICT)
+          DateTimeFormatter.ofPattern("uuuu-MM-dd HH:mm:ss.SSS", I18N.shared.defaultLocale).withResolverStyle(STRICT)
+        else DateTimeFormatter.ofPattern(fmtString.replace('y','u'), I18N.shared.defaultLocale).withResolverStyle(STRICT)
       time.show(fmt)
     }
   }