Namibia since September 2017 is in the Central Africa Time zone at UTC+02:00, congruous with South African Standard Time. The country kept the time regulations of South Africa when it gained independence in 1990. Triggered by fears for children walking to school before sunrise, in 1993 the Namibian Time Bill was passed, stipulating the switch to Winter time as one of only a few countries in the world. Only the Zambezi Region in the far north-east remained at UTC+02:00. In the 2010s criticism of Namibian time regulations arose, mainly due to incompatibilities with South Africa, Namibia's main trading partner, and the hassle of different time regulations in the Caprivi Strip.