To whom it may be of interest: The time zone rule files referred to following locations that are not found in "zone1970.tab": America/Montreal America/Antigua America/Cayman Asia/Bahrain Asia/Kuwait Asia/Muscat Asia/Aden Pacific/Saipan Pacific/Midway Note: some (if not all) of the above-listed locations are found in "zone.tab", but the documentation states that "zone1970.tab" should be used instead. Thank you for your excellent (and much appreciated!) work. Happy new year 2015! J-F Rivard *J-F Rivard | Consultant** | T:450.653.2912** | C:438.495.2912* *univoc@videotron.ca <univoc@videotron.ca>*