When flying from Jakarta to Zimbabwe, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
CGK stands for Jakarta Soekarno-Hatta Intl Airport, while HRE stands for Harare Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Victoria Falls Airport (VFA), Bulawayo Airport (BUQ), Kariba Airport (KAB) are other airports near this flight route and their unique identifiers/IATA codes.