Clock Changes in São Tomé, Sao Tome and Principe

Jan 1, 2018 - Time Zone Change (GMT → WAT)

When local standard time was about to reach
Monday, January 1, 2018, 1:00:00 am clocks were turned forward 1 hour to
Monday, January 1, 2018, 2:00:00 am local standard time instead.

Sunrise and sunset were about 1 hour later on Jan 1, 2018 than the day before. There was more light in the evening.

More info:
São Tomé and Príncipe Changes Its Time Zone