diff --git a/omega-pac/src/conditions.coffee b/omega-pac/src/conditions.coffee
index cf75359..895fe88 100644
--- a/omega-pac/src/conditions.coffee
+++ b/omega-pac/src/conditions.coffee
@@ -590,9 +590,10 @@ module.exports = exports =
       analyze: (condition) -> null
       match: (condition, request) ->
         day = new Date().getDay()
+        return condition.days.charCodeAt(day) > 64 if condition.days
         return condition.startDay <= day and day <= condition.endDay
       compile: (condition) ->
-        val = new U2.AST_Call(
+        getDay = new U2.AST_Call(
           args: []
           expression: new U2.AST_Dot(
             property: 'getDay'
@@ -602,14 +603,34 @@ module.exports = exports =
             )
           )
         )
-        @between val, condition.startDay, condition.endDay
-      str: (condition) -> condition.startDay + '~' + condition.endDay
+        if condition.days
+          new U2.AST_Binary(
+            left: new U2.AST_Call(
+              expression: new U2.AST_Dot(
+                expression: new U2.AST_String value: condition.days
+                property: 'charCodeAt'
+              )
+              args: [getDay]
+            )
+            operator: '>'
+            right: new U2.AST_Number value: 64
+          )
+        else
+          @between getDay, condition.startDay, condition.endDay
+      str: (condition) ->
+        if condition.days
+          condition.days
+        else
+          condition.startDay + '~' + condition.endDay
       fromStr: (str, condition) ->
-        [startDay, endDay] = str.split('~')
-        condition.startDay = parseInt(startDay, 10)
-        condition.endDay = parseInt(endDay, 10)
-        condition.startDay = 0 unless 0 <= condition.startDay <= 6
-        condition.endDay = 0 unless 0 <= condition.endDay <= 6
+        if str.indexOf('~') < 0 and str.length == 7
+          condition.days = str
+        else
+          [startDay, endDay] = str.split('~')
+          condition.startDay = parseInt(startDay, 10)
+          condition.endDay = parseInt(endDay, 10)
+          condition.startDay = 0 unless 0 <= condition.startDay <= 6
+          condition.endDay = 0 unless 0 <= condition.endDay <= 6
         condition
 
     'TimeCondition':
diff --git a/omega-pac/test/conditions.coffee b/omega-pac/test/conditions.coffee
index 7f2eaaa..46bf39e 100644
--- a/omega-pac/test/conditions.coffee
+++ b/omega-pac/test/conditions.coffee
@@ -1,6 +1,6 @@
 chai = require 'chai'
 should = chai.should()
-lolex = require 'lolex';
+lolex = require 'lolex'
 
 describe 'Conditions', ->
   Conditions = require '../src/conditions'
@@ -408,6 +408,46 @@ describe 'Conditions', ->
       testCondDay(cond, 5, not 'match')
       testCondDay(cond, 6, not 'match')
 
+    it 'should match according to .days', ->
+      cond =
+        conditionType: 'WeekdayCondition'
+        days: 'SMTWtFs'
+
+      testCondDay(cond, 0, 'match')
+      testCondDay(cond, 1, 'match')
+      testCondDay(cond, 2, 'match')
+      testCondDay(cond, 3, 'match')
+      testCondDay(cond, 4, 'match')
+      testCondDay(cond, 5, 'match')
+      testCondDay(cond, 6, 'match')
+
+      cond =
+        conditionType: 'WeekdayCondition'
+        days: 'S-TW-F-'
+
+      testCondDay(cond, 0, 'match')
+      testCondDay(cond, 1, not 'match')
+      testCondDay(cond, 2, 'match')
+      testCondDay(cond, 3, 'match')
+      testCondDay(cond, 4, not 'match')
+      testCondDay(cond, 5, 'match')
+      testCondDay(cond, 6, not 'match')
+
+    it 'should prefer .days to .startDay and .endDay', ->
+      cond =
+        conditionType: 'WeekdayCondition'
+        days: '--TW---'
+        startDay: 0
+        endDay: 0
+
+      testCondDay(cond, 0, not 'match')
+      testCondDay(cond, 1, not 'match')
+      testCondDay(cond, 2, 'match')
+      testCondDay(cond, 3, 'match')
+      testCondDay(cond, 4, not 'match')
+      testCondDay(cond, 5, not 'match')
+      testCondDay(cond, 6, not 'match')
+
   describe 'TimeCondition', ->
     clock = null
     before ->
@@ -595,6 +635,22 @@ describe 'Conditions', ->
         startDay: 0
         endDay: 0
       )
+    it 'should encode & decode WeekdayCondition with days', ->
+      condition =
+        conditionType: 'WeekdayCondition'
+        days: 'SMTWtFs'
+      result = Conditions.str(condition)
+      result.should.equal('Weekday: SMTWtFs')
+      cond = Conditions.fromStr(result)
+      cond.should.eql(condition)
+
+      condition =
+        conditionType: 'WeekdayCondition'
+        days: 'SM-W-Fs'
+      result = Conditions.str(condition)
+      result.should.equal('Weekday: SM-W-Fs')
+      cond = Conditions.fromStr(result)
+      cond.should.eql(condition)
     it 'should encode & decode TimeCondition correctly', ->
       condition =
         conditionType: 'TimeCondition'