Verb conjugation of "land" in English

For example, if I am working very early in the morning, let's say 06.00 (that would be 09.00 your time), I don't notice it much. But 9 hours later, the system slows down, because people in Europe get online.
Productivity declines when it is too hot outside. Oscar therefore closed his laptop and production unit and headed towards the lake where his pretty girlfriend was waiting for him. Once he arrived he bought a ice cream as a surprise.
Perhaps we are could meet sometime in person, not just via the Internet. Of course, we should still write each other a lot. I will get back to you once I am back in Cologne, and then give you know.