What is the difference between these two Sun conditions?

Configuration
1

I use a lot of copy and paste to build my automations and I’ve run across across what looks like two different ways to do the same thing but I wanted to know for sure. Is there any difference between the two statements below? Also I travel for work and I noticed that the sun integration says it will use my current location to perform automations. How can I prevent that so that my lights at home that use sun integration will come on during sunset in my home city and not my current traveling city?

    condition:
      condition: state
      entity_id: sun.sun
      state: 'below_horizon'

  condition:
  - condition: sun
    after: sunset
2

Below horizon is the sun being, ummm, below horizon.

After sunset is between sunset and midnight.

Unless you’re updating your ‘home’ location when you travel, it is using your home sun times.