diff --git a/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/numeral/Predicates.scala b/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/numeral/Predicates.scala
index 7abd0aad..9e17178f 100644
--- a/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/numeral/Predicates.scala
+++ b/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/numeral/Predicates.scala
@@ -46,7 +46,7 @@ object Predicates {
   }
 
   val isIntegerBetween: (Int, Int) => Predicate = (low: Int, high: Int) => {
-    case Token(Numeral, NumeralData(v, _, _, _, _, _)) => isIntegerBetween(v, low, high)
+    case Token(Numeral, NumeralData(v, _, _, _, _, precision)) => precision == 0 && isIntegerBetween(v, low, high)
   }
 
   def isIntegerBetween(x: Double, low: Int, high: Int): Boolean = {
@@ -58,13 +58,13 @@ object Predicates {
   }
 
   val isNatural: Predicate = {
-    case Token(Numeral, NumeralData(v, _, _, _, _, _)) => isInteger(v) && v > 0
-    case Token(UnitNumber, NumeralData(v, _, _, _, _, _)) => isInteger(v) && v > 0
+    case Token(Numeral, NumeralData(v, _, _, _, _, precision)) => precision == 0 && isInteger(v) && v > 0
+    case Token(UnitNumber, NumeralData(v, _, _, _, _, precision)) => precision == 0 && isInteger(v) && v > 0
     case _ => false
   }
 
   val isInteger: Predicate = {
-    case Token(_, NumeralData(v, _, _, _, _, _)) => isInteger(v)
+    case Token(_, NumeralData(v, _, _, _, _, precision)) => precision == 0 && isInteger(v)
   }
 
   def isInteger(d: Double): Boolean = getIntValue(d).nonEmpty
diff --git a/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/time/rule/Times.scala b/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/time/rule/Times.scala
index fb3ffd4e..71eec987 100644
--- a/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/time/rule/Times.scala
+++ b/duckling-fork-chinese/core/src/main/scala/com/xiaomi/duckling/dimension/time/rule/Times.scala
@@ -16,17 +16,16 @@
 
 package com.xiaomi.duckling.dimension.time.rule
 
-import org.apache.commons.lang3.StringUtils
-
 import scalaz.Scalaz._
 
 import com.xiaomi.duckling.Types._
 import com.xiaomi.duckling.dimension.implicits._
 import com.xiaomi.duckling.dimension.matcher.Prods.regexMatch
 import com.xiaomi.duckling.dimension.matcher.{GroupMatch, RegexMatch}
-import com.xiaomi.duckling.dimension.numeral.NumeralData
+import com.xiaomi.duckling.dimension.numeral.{Numeral, NumeralData}
 import com.xiaomi.duckling.dimension.numeral.Predicates._
 import com.xiaomi.duckling.dimension.numeral.Prods.integerMap
+import com.xiaomi.duckling.dimension.numeral.seq.{isDigitLeading0, isDigitOfWidth, DigitSequence, DigitSequenceData}
 import com.xiaomi.duckling.dimension.time.Prods._
 import com.xiaomi.duckling.dimension.time.enums.Hint
 import com.xiaomi.duckling.dimension.time.form.TimeOfDay
@@ -55,6 +54,17 @@ object Times {
     }
   )
 
+  val ruleMM = Rule(
+    name = "mm 分",
+    pattern = List(or(and(isDimension(DigitSequence), isDigitLeading0, isDigitOfWidth(2)), isIntegerBetween(0, 59)).predicate, "分".regex),
+    prod = tokens {
+      case Token(_, DigitSequenceData(seq, _, _)) :: _ =>
+        tt(minute(Integer.parseInt(seq)))
+      case Token(_, nd: NumeralData) :: _ =>
+        tt(minute(nd.value.toInt).copy(latent = true))
+    }
+  )
+
   val ruleHhmmssCN_TimeOfDay = Rule(
     name = "hh时mm分ss秒 (time-of-day)",
     pattern = List(raw"((?:[01]?\d)|(?:2[0-3]))[点]([0-5]?\d)分(([0-5]?\d)秒)?".regex),
@@ -199,6 +209,7 @@ object Times {
 
   val rules = List(
     ruleNow,
+    ruleMM,
     ruleHhmmssTimeOfDay,
     ruleTimeOfDayOClock,
     ruleIntegerLatentTimeOfDay,
diff --git a/duckling-fork-chinese/learning/src/main/scala/com/xiaomi/duckling/dimension/time/Examples.scala b/duckling-fork-chinese/learning/src/main/scala/com/xiaomi/duckling/dimension/time/Examples.scala
index cb1fafde..82d7b750 100644
--- a/duckling-fork-chinese/learning/src/main/scala/com/xiaomi/duckling/dimension/time/Examples.scala
+++ b/duckling-fork-chinese/learning/src/main/scala/com/xiaomi/duckling/dimension/time/Examples.scala
@@ -497,6 +497,8 @@ object Examples extends DimExamples {
     (datetime(LocalDateTime.of(2013, 2, 22, 8, 0, 0), Hour), List("下周五8点")),
     (datetime(LocalDateTime.of(2013, 11, 20, 20, 0, 0), Hour), List("11.20 20点")),
     (datetime(LocalDateTime.of(2013, 12, 24, 0, 0, 0), Day), List("圣诞节的前一天", "圣诞节前一天")),
+    (datetime(LocalDateTime.of(2013, 2, 12, 5, 5, 0), Minute), List("05分")),
+    (datetime(LocalDateTime.of(2013, 2, 12, 4, 50, 0), Minute), List("50分")),
     (datetime(LocalDateTime.of(2013, 2, 12, 11, 3, 0), Minute), List("11点03分", "11点03", "十一点零三分", "十一点零三")),
     (datetime(LocalDateTime.of(2013, 9, 15, 11, 0, 0), Hour), List("9月1号的14天11小时后", "9月1号的两个星期11小时之后", "9月16号的13个小时以前")),
     (datetime(LocalDateTime.of(2013, 1, 13, 0, 0, 0), Day), List("2月13号的31天前", "2月13号的一个月以前", "明天的一个月以前", "2月13号31天前", "2月13号前的第31天")),