diff --git a/sohstationviewer/model/reftek/rt130_experiment/reftek.py b/sohstationviewer/model/reftek/rt130_experiment/reftek.py
index 4b1c452f31d34171ece292d8567961366e52f69d..5de77e643f0d626c95536cf326979be894d37647 100644
--- a/sohstationviewer/model/reftek/rt130_experiment/reftek.py
+++ b/sohstationviewer/model/reftek/rt130_experiment/reftek.py
@@ -160,8 +160,7 @@ def convert_packet_to_obspy_format(packet: Union[EHETPacket, DTPacket], unpacker
     # Obspy only stores the last two digits of the year.
     converted_packet['year'] = packet.header.time.year % 100
     converted_packet['unit_id'] = packet.header.unit_id
-    # We need to convert the stored time from second to nanosecond
-    converted_packet['time'] = packet.header.time.timestamp * 10**9
+    converted_packet['time'] = packet.header.time.ns
     converted_packet['byte_count'] = packet.header.byte_count
     converted_packet['packet_sequence'] = packet.header.packet_sequence
     converted_packet['event_number'] = packet.extended_header.event_number