Still working in progress and serves as personal note on how to take flights without checking if it's ready to board and without Fast Travel Ticket. Location Board Boarding end Take off Land Frequency Kerning City < - > Singapore Plane ??:?[5x+1]:00 ??:?[5x+4]:00 ??:?[5x+5]:00 ??:?[5x+6]:00 Every 5 mins Ludi < - Korean Folk town Elevator ??:?[4x+1]:00 N/A ??:?[4x+2]:00 ??:?[4x+3]:00 Every 4 mins Ludi - > Korean Folk town Elevator ??:?[4x+3]:00 N/A ??:?[4x+4]:00 ??:?[4x+5]:00 Every 4 mins Leafre - > Orbis Ship ??:?[10x+5]:00 ??:?[10x+9]:00 ??:?[10x+10]:00 Lost data Every 10 mins How to Read ? matches any number or don't care [] is used for indicating representation of a digit x is for any number such that formula within [] is a valid number The duration between Take off and Land is the blocked time where you cannot get boarded. Once the flight is landed, you can board. e.g. ??:?[5x+1]:00 means at all timestamps where it's matching mins by the second digit such as 1, 6, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, and seconds by 00.