merge settings fetch, add helpers
diff --git a/erpnext/www/book-appointment/index.py b/erpnext/www/book-appointment/index.py
index 6f416d1..eb7d5b9 100644
--- a/erpnext/www/book-appointment/index.py
+++ b/erpnext/www/book-appointment/index.py
@@ -18,47 +18,31 @@
     else:
         raise frappe.DoesNotExistError
 
-
 @frappe.whitelist(allow_guest=True)
 def get_appointment_settings():
     settings = frappe.get_doc('Appointment Booking Settings')
+    settings.holiday_list = frappe.get_doc('Holiday List', settings.holiday_list)
     return settings
 
-
-@frappe.whitelist(allow_guest=True)
-def is_enabled():
-    enable_scheduling = frappe.db.get_single_value(
-        'Appointment Booking Settings', 'enable_scheduling')
-    return enable_scheduling
-
-
-@frappe.whitelist(allow_guest=True)
-def get_holiday_list(holiday_list_name):
-    holiday_list = frappe.get_doc('Holiday List', holiday_list_name)
-    return holiday_list
-
-
 @frappe.whitelist(allow_guest=True)
 def get_timezones():
     return pytz.all_timezones
 
-
 @frappe.whitelist(allow_guest=True)
 def get_appointment_slots(date, timezone):
     import pytz
     guest_timezone = pytz.timezone(timezone)
+    local_timezone = pytz.timezone(frappe.utils.get_time_zone())
     format_string = '%Y-%m-%d %H:%M:%S'
     query_start_time = datetime.datetime.strptime(
         date + ' 00:00:00', format_string)
     query_end_time = datetime.datetime.strptime(
         date + ' 23:59:59', format_string)
-    local_timezone = frappe.utils.get_time_zone()
-    local_timezone = pytz.timezone(local_timezone)
-    query_start_time = guest_timezone.localize(query_start_time)
-    query_end_time = guest_timezone.localize(query_end_time)
-    query_start_time = query_start_time.astimezone(local_timezone)
-    query_end_time = query_end_time.astimezone(local_timezone)
-    now = datetime.datetime.now()
+    
+    query_start_time = convert_to_system_timzone(timezone,query_start_time)
+    query_end_time = convert_to_system_timzone(timezone,query_end_time)
+    now = convert_to_guest_timezone(timezone,datetime.datetime.now())
+
     # Database queries
     settings = frappe.get_doc('Appointment Booking Settings')
     holiday_list = frappe.get_doc('Holiday List', settings.holiday_list)
@@ -68,9 +52,9 @@
     # Filter timeslots based on date
     converted_timeslots = []
     for timeslot in timeslots:
-        timeslot = local_timezone.localize(timeslot)
-        timeslot = timeslot.astimezone(guest_timezone)
-        timeslot = timeslot.replace(tzinfo=None)
+        print("Unconverted Timeslot:{0}".format(timeslot))
+        timeslot = convert_to_guest_timezone(timezone,timeslot)
+        print("Converted Timeslot:{0}".format(timeslot))
         # Check if holiday
         if _is_holiday(timeslot.date(), holiday_list):
             converted_timeslots.append(
@@ -112,11 +96,16 @@
 
 
 @frappe.whitelist(allow_guest=True)
-def create_appointment(date, time, contact):
+def create_appointment(date, time, tz, contact):
+    import pytz
     appointment = frappe.new_doc('Appointment')
-    format_string = '%Y-%m-%d %H:%M:%S'
-    appointment.scheduled_time = datetime.datetime.strptime(
+    format_string = '%Y-%m-%d %H:%M:%S%z'
+    scheduled_time = datetime.datetime.strptime(
         date+" "+time, format_string)
+    scheduled_time = scheduled_time.replace(tzinfo=None)
+    scheduled_time = convert_to_system_timzone(tz,scheduled_time)
+    scheduled_time= scheduled_time.replace(tzinfo=None)
+    appointment.scheduled_time = scheduled_time
     contact = json.loads(contact)
     appointment.customer_name = contact['name']
     appointment.customer_phone_number = contact['number']
@@ -126,7 +115,6 @@
     appointment.status = 'Open'
     appointment.insert()
 
-
 # Helper Functions
 def filter_timeslots(date, timeslots):
     filtered_timeslots = []
@@ -135,11 +123,25 @@
             filtered_timeslots.append(timeslot)
     return filtered_timeslots
 
+def convert_to_guest_timezone(guest_tz,datetimeobject):
+    import pytz
+    guest_tz = pytz.timezone(guest_tz)
+    local_timezone = pytz.timezone(frappe.utils.get_time_zone())
+    datetimeobject = local_timezone.localize(datetimeobject)
+    datetimeobject = datetimeobject.astimezone(guest_tz)
+    return datetimeobject
+
+def convert_to_system_timzone(guest_tz,datetimeobject):
+    import pytz
+    guest_tz = pytz.timezone(guest_tz)
+    datetimeobject = guest_tz.localize(datetimeobject)
+    system_tz = pytz.timezone(frappe.utils.get_time_zone())
+    datetimeobject = datetimeobject.astimezone(system_tz)
+    return datetimeobject
 
 def check_availabilty(timeslot, settings):
     return frappe.db.count('Appointment', {'scheduled_time': timeslot}) < settings.number_of_agents
 
-
 def _is_holiday(date, holiday_list):
     for holiday in holiday_list.holidays:
         if holiday.holiday_date == date:
@@ -162,4 +164,4 @@
 
 def _datetime_to_deltatime(date_time):
     midnight = datetime.datetime.combine(date_time.date(), datetime.time.min)
-    return (date_time-midnight)
+    return (date_time-midnight)
\ No newline at end of file