diff --git a/wetb/dlb/hawc2_iec_dlc_writer.py b/wetb/dlb/hawc2_iec_dlc_writer.py
index a5286d4e440c4421876f42e8523cd88a2ef59f8d..92b850b725dd18951665bc434986a89a5b53017f 100644
--- a/wetb/dlb/hawc2_iec_dlc_writer.py
+++ b/wetb/dlb/hawc2_iec_dlc_writer.py
@@ -13,7 +13,7 @@ TODO: set default turb_format = 0
 class HAWC2_IEC_DLC_Writer(HAWC2InputWriter):
     def __init__(self, base_htc_file, diameter,
                  time_start=100,  # Minimum 5s cf. IEC61400-1(2005), section 7.5
-                 turbulence_defaults=(29.4, 3.7, 8192, 32)  # L, gamma, n_x, n_yz):
+                 turbulence_defaults=(33.6, 3.9, 8192, 64)  # L, gamma, n_x, n_yz):
                  ):
         HAWC2InputWriter.__init__(self, base_htc_file, diameter=diameter,
                                   time_start=time_start,
diff --git a/wetb/gtsdf/unix_time.py b/wetb/gtsdf/unix_time.py
index d3e1db4493bf0bf74343d9dd432f8d5e9a043b27..94bcc4f942389ef00a5894aaac6462cae07b6cdd 100644
--- a/wetb/gtsdf/unix_time.py
+++ b/wetb/gtsdf/unix_time.py
@@ -1,6 +1,6 @@
-from datetime import datetime, date
+from datetime import datetime, date, UTC
 import numpy as np
-timestamp0 = datetime.utcfromtimestamp(0)
+timestamp0 = datetime(1970, 1, 1)
 
 
 def to_unix(dateTime):
@@ -11,12 +11,12 @@ def to_unix(dateTime):
             return [(dt - timestamp0).total_seconds() for dt in dateTime]
         raise
 
+
 # def from_unix_old(sec):
 #     if np.isnan(sec):
 #         return datetime.utcfromtimestamp(0)
 #     return datetime.utcfromtimestamp(sec)
 
-
 day_dict = {}
 
 
diff --git a/wetb/hawc2/htc_extensions.py b/wetb/hawc2/htc_extensions.py
index 2dca637bcfca83dd57f27d0d602641517556e785..b585503ebf7e950f81fe0a92b9c843ec30595f6e 100644
--- a/wetb/hawc2/htc_extensions.py
+++ b/wetb/hawc2/htc_extensions.py
@@ -20,8 +20,6 @@ class HTCDefaults(object):
         log_deltat 1;
     end simulation;
     ;
-    ;----------------------------------------------------------------------------------------------------------------------------------------------------------------
-    ;
     begin wind ;
       density                 1.225 ;
       wsp                     10   ;
@@ -34,9 +32,6 @@ class HTCDefaults(object):
       tower_shadow_method     0     ;  0=none, 1=potential flow, 2=jet
     end wind;
     ;
-    ;----------------------------------------------------------------------------------------------------------------------------------------------------------------
-    ;
-    ;
     begin output;
       filename    ./tmp;
       data_format gtsdf;