The date command inverts the sign if TZ is set with Etc/GMT. Example: TZ=':Etc/GMT+5' date Result: Di 11. Mai 05:08:48 -05 2021 Tested with version coreutils-8.28 and coreutils 8.32-1. Thomas Güttinger Linux Developer Guettinger@igel.com www.igel.com Come join the IGEL community and Follow us IGEL Technology GmbH Forschungs- und Entwicklungsabteilung Hermanstr. 17 86150 Augsburg Germany IGEL Technology GmbH, Hermann-Ritter-Straße 110, 28197 Bremen, Germany Geschäftsführer: Jedediah Ayres (CEO), Matthias Haas (CTO) Amtsgericht Bremen: HRB 20636 VAT-ID: DE 219524359, WEEE-Reg.-No. DE 79295479