20 Meters is the band of choice for worldwide propagation, providing easy access to parts of the world that are difficult to reach in the winter. We can enjoy these conditions for the next 2 or 3 months. There is also a surge in activity on 10 Meters at this time of year. It's not DX, but it's fun. The bottom of the sunspot cycle seems to bring out the best in Sporadic E propagation on this band.
Openings occur through the daytime and into the night.
This is an important source of SSB contacts during the ARRL Field Day. 6 Meter propagation is also in season. 20 Meters is in excellent shape for much of the morning and most of the evening. There are several paths to watch. Long path isn't very reliable at current levels of solar activity, but the morning path to Africa is workable.