diff --git a/paramecio2/libraries/datetime.py b/paramecio2/libraries/datetime.py
new file mode 100644
index 0000000..a6423a0
--- /dev/null
+++ b/paramecio2/libraries/datetime.py
@@ -0,0 +1,447 @@
+import time
+from datetime import date, datetime, tzinfo
+import arrow
+# from babel.dates import format_date, format_datetime, format_time, get_timezone, UTC
+from settings import config
+#from paramecio.citoplasma.sessions import get_session
+from os import environ
+
+
+sql_format_time='YYYYMMDDHHmmss'
+
+format_date_txt="YYYY/MM/DD"
+
+format_time_txt="HH:mm:ss"
+
+timezone='Europe/Madrid'
+
+if hasattr(config, 'format_date'):
+    format_date_txt=config.format_date
+
+if hasattr(config, 'format_time'):
+    format_time_txt=config.format_time
+
+if hasattr(config, 'timezone'):
+    timezone=config.timezone    
+
+def set_timezone():
+    
+    environ['TZ']=environ.get('TZ', timezone)
+    
+    if environ['TZ']!=timezone:
+        environ['TZ']=timezone
+        time.tzset()
+
+"""
+def set_timezone_session():
+    
+    s=get_session()
+    
+    timezone_local=timezone
+    
+    if s!=None:
+        if 'timezone' in s:
+            timezone_local=s['timezone']
+        #timezone_local=s.get('timezone', timezone)
+    
+    environ['TZ']=environ.get('TZ', timezone_local)
+    
+    if environ['TZ']!=timezone_local:
+        environ['TZ']=timezone_local
+        time.tzset()
+    
+    #request.environ['TIMEZONE'] = request.environ['PATH_INFO'].rstrip('/')
+"""
+
+def format_timedata(time):
+    
+    year=0
+    month=0
+    day=0
+    hour=0
+    minute=0
+    second=0
+    ampm=''
+    
+    try:
+    
+        year=int(time[:4])
+        
+        month=int(time[4:6])
+        
+        day=int(time[6:8])
+        
+        hour=int(time[8:10])
+        
+        minute=int(time[10:12])
+        
+        second=int(time[12:14])
+    
+        ampm=int(time[14:16])
+
+    except:
+        pass
+    
+    if ampm=='PM' or ampm=='pm':
+        
+        if hour>0:
+            hour+=12
+
+    return (year, month, day, hour, minute, second)
+
+def checkdatetime(y, m, d, h, mi, s):
+    
+    try:
+        #test=datetime.strptime(str(y)+'-'+str(m)+'-'+str(d)+' '+str(h)+'-'+str(mi)+'-'+str(s), '%Y-%m-%d %H-%M-%S')
+        test=arrow.arrow.Arrow(y, m, d, h, mi, s)
+        return True
+    except:
+        return False
+    
+# Get the localtime
+    
+def now(utc=False, tz=''):
+    """
+    actual=datetime.today()
+    
+    # Get localtime
+    
+    final_date=actual.strftime(sql_format_time)
+    #Go to gmt
+    
+    if utc:
+    
+        final_date=local_to_gmt(final_date)
+        
+    return final_date
+    """
+    
+    if not utc:
+        if tz=='':
+            actual=arrow.now().format(sql_format_time)
+        else:
+            #actual=arrow.to(tz).now().format(sql_format_time)
+            utc=arrow.utcnow()
+            actual=utc.to(tz).format(sql_format_time)
+    else:
+        actual=arrow.utcnow().format(sql_format_time)
+    
+    return actual
+    
+def today(utc=False,tz=''):
+    
+    return now(utc, tz)[:8]+'000000'
+    
+# Get actual timestamp
+
+def obtain_timestamp(timeform, local=False, tz=''):
+    
+    y, m, d, h, mi, s=format_timedata(timeform)
+    
+    if checkdatetime(y, m, d, h, mi, s):
+        
+        #timestamp=int(time.mktime((y, m, d, h, mi, s, 0, 0, -1)))       
+        
+        if local:
+            
+            #offset=time.altzone
+        
+            #return timestamp-offset
+            
+            if tz=='':
+                tz=environ.get('TZ', 'utc')
+            
+            t=arrow.arrow.Arrow(y, m, d, h, mi, s).to(tz)
+            
+            timestamp=t.timestamp
+            
+        else:
+            timestamp=arrow.arrow.Arrow(y, m, d, h, mi, s).timestamp
+         
+        return timestamp
+        
+        #return mktime($h, $mi, $s, $m, $d, $y);
+    else:
+        return False
+
+# timestamp is gmt time, convert in normal time
+
+def timestamp_to_datetime(timestamp):
+    
+    #time_set=substract_utc(timestamp)
+        
+    #return time.strftime(sql_format_time, time_set)
+    
+    return arrow.get(timestamp).format(sql_format_time)
+
+# Get a utc timestamp and convert to local
+
+def timestamp_to_datetime_local(timestamp, tz=''):
+    
+    #time_set=time.localtime(timestamp)
+    
+    #return time.strftime(sql_format_time, time_set)
+    
+    t=arrow.get(timestamp)
+
+    if tz=='':
+        tz=environ['TZ']    
+    
+    return t.to(tz).format(sql_format_time)
+
+
+def format_datetime(format_time, timeform, func_utc_return):
+    
+    timestamp=obtain_timestamp(timeform)
+    
+    if timestamp:
+    
+        t=func_utc_return(timestamp)
+        
+        return t.format(format_time)
+        
+    else:
+    
+        return False
+        
+# This method parse local time to gmt
+
+def local_to_gmt(timeform, sql_format_time=sql_format_time):
+    
+    return format_datetime(sql_format_time, timeform, substract_utc)
+
+# time.localtime is useless, you need sum the time offset to the date
+
+def gmt_to_local(timeform, sql_format_time=sql_format_time):
+    
+    return format_datetime(sql_format_time, timeform, sum_utc)
+
+def format_time(timeform):
+    
+    return format_datetime(format_time_txt, timeform, sum_utc)
+
+def format_date(timeform):
+    
+    return format_datetime(format_date_txt, timeform, sum_utc)
+
+def format_fulldate(timeform):
+    
+    return format_datetime(format_date_txt+' '+format_time_txt, timeform, sum_utc)
+
+def format_local_time(timeform):
+    
+    return format_datetime(format_time_txt, timeform, no_utc)
+
+def format_local_date(timeform):
+    
+    return format_datetime(format_date_txt, timeform, no_utc)
+
+def format_local_fulldate(timeform):
+    
+    return format_datetime(format_date_txt+' '+format_time_txt, timeform, no_utc)
+
+def format_strtime(strtime, timeform):
+    
+    return format_datetime(strtime, timeform, sum_utc)    
+
+def format_local_strtime(strtime, timeform):
+    
+    return format_datetime(strtime, timeform, no_utc)    
+
+#Input is utc timestamp, return local arrow object
+
+def sum_utc(timestamp, tz=''):
+    
+    #offset=time.altzone
+
+    #return time.localtime(timestamp-offset)
+    
+    t=arrow.get(timestamp)
+    
+    if tz=='':
+        tz=environ['TZ']    
+    
+    return t.to(tz)
+
+#Input is local timestamp, return utc arrow object
+
+def substract_utc(timestamp, tz=''):
+    
+    #offset=time.altzone
+
+    #return time.localtime(timestamp+offset)
+    
+    #t=arrow.get(timestamp).to('UTC')
+    
+    timeform=timestamp_to_datetime(timestamp)
+    
+    y, m, d, h, mi, s=format_timedata(timeform)
+
+    if tz=='':
+        tz=environ['TZ']    
+    
+    t=arrow.get(datetime(y, m, d, h, mi, s), tz).to('UTC')
+    
+    return t
+
+def no_utc(timestamp):
+    
+    return arrow.get(timestamp)
+
+# def date_to_sql(date_sql):
+    
+    
+
+class TimeClass:
+    
+    def __init__(self, timestamp=None, tz=''):
+        
+        self.utc=False
+        
+        self.format_time=sql_format_time
+        self.format_time_txt=format_time_txt
+
+        self.format_date_txt=format_date_txt
+
+        self.format_date_full=format_date_txt+' '+format_time_txt
+        
+        self.tz=environ.get('TZ', 'utc')
+        
+        if tz:
+            self.tz=tz
+        
+        if type(timestamp).__name__=='int':
+            """
+            if self.utc:
+
+                self.datetime=utcnow()
+                
+            else:
+            """
+            self.datetime=timestamp_to_datetime(timestamp)        
+
+        else:
+            
+            if not timestamp:
+            
+                self.datetime=now(self.utc, tz)
+            
+            else:
+                self.datetime=timestamp
+        
+        y, m, d, h, mi, s=format_timedata(self.datetime)
+        
+        self.t=arrow.get(datetime(y, m, d, h, mi, s), self.tz)
+    
+    def add_month(self, num_months):
+        
+        m=self.t.shift(months=+num_months)
+        
+        return m.format(self.format_time)
+
+    def substract_month(self, num_months):
+        
+        m=self.t.shift(months=-num_months)
+        
+        return m.format(self.format_time)
+
+    def add_day(self, num_days):
+        
+        m=self.t.shift(days=+num_days)
+        
+        return m.format(self.format_time)
+
+    def substract_day(self, num_days):
+        
+        m=self.t.shift(days=-num_days)
+        
+        return m.format(self.format_time)
+
+    def add_year(self, num_years):
+        
+        m=self.t.shift(years=+num_years)
+        
+        return m.format(self.format_time)
+
+    def substract_year(self, num_years):
+        
+        m=self.t.shift(years=-num_years)
+        
+        return m.format(self.format_time)
+
+    def add_hour(self, num_hours):
+        
+        m=self.t.shift(hours=+num_hours)
+        
+        return m.format(self.format_time)
+
+    def substract_hour(self, num_hours):
+        
+        m=self.t.shift(hours=-num_hours)
+        
+        return m.format(self.format_time)
+    
+    def format(self):
+        
+        return self.t.format(self.format_date_full)
+    
+    def local_to_utc(self):
+        
+        self.t=self.t.to('utc')
+
+    # Only use 
+
+    def utc_to_local(self):
+        
+        self.t=self.t.to(self.tz)
+
+    def local_to_tz(self, tz):
+        
+        self.t=self.t.to(tz)
+
+    def now(self, utc=False):        
+        
+        if not utc:
+
+            actual=arrow.now(self.tz).format(sql_format_time)
+        else:
+            actual=arrow.utcnow().format(sql_format_time)
+        
+        return actual
+        
+    def today(self, utc=False):
+        
+        if utc:
+        
+            return arrow.utcnow()[:8]+'000000'
+        else:
+            return arrow.now(self.tz)[:8]+'000000'            
+
+    def timestamp_to_datetime(self, timestamp):
+        
+        return arrow.get(timestamp).format(sql_format_time)
+
+    def obtain_timestamp(self, timeform):
+        
+        y, m, d, h, mi, s=format_timedata(timeform)
+        
+        if checkdatetime(y, m, d, h, mi, s):
+            
+            timestamp=arrow.arrow.Arrow(y, m, d, h, mi, s).timestamp                
+            
+            return timestamp
+            
+        else:
+            return False
+            
+    def format_strtime(self, strtime, timeform):
+    
+        #timestamp=self.obtain_timestamp(timeform)
+        try:
+            y, m, d, h, mi, s=format_timedata(timeform)
+
+            return arrow.get(datetime(y, m, d, h, mi, s), self.tz).format(strtime)
+            
+        except:
+        
+            return False
diff --git a/paramecio2/libraries/db/extrafields/datefield.py b/paramecio2/libraries/db/extrafields/datefield.py
index 40803ad..6e1f62c 100644
--- a/paramecio2/libraries/db/extrafields/datefield.py
+++ b/paramecio2/libraries/db/extrafields/datefield.py
@@ -1,5 +1,5 @@
 from paramecio2.libraries.db.corefields import PhangoField
-from paramecio.citoplasma import datetime
+from paramecio2.libraries import datetime
 from paramecio2.libraries.db.extraforms.dateform import DateForm
 
 class DateField(PhangoField):
diff --git a/paramecio2/libraries/db/extrafields/datetimefield.py b/paramecio2/libraries/db/extrafields/datetimefield.py
index 9e5050d..38f15f4 100644
--- a/paramecio2/libraries/db/extrafields/datetimefield.py
+++ b/paramecio2/libraries/db/extrafields/datetimefield.py
@@ -1,5 +1,5 @@
 from paramecio2.libraries.db.corefields import PhangoField
-from paramecio.citoplasma import datetime
+from paramecio2.libraries import datetime
 from paramecio2.libraries.db.extraforms.dateform import DateForm
 
 class DateTimeField(PhangoField):