creative writing - What format should I use when beginning a chapter with the time and location of the events?

What format should I use when beginning a chapter with the time and location of the events?

I was thinking to use:

Nine pm. Sunday, in Los Angeles, CA, USA.

but I don't think it looks good, so I was wondering what were the alternatives and which ones were the most popular ones.

For example:

Nine pm. Sunday, in Los Angeles, CA, USA. Steve got out of the office earlier than usual, and took a cab to meet his friend who was sitting on a park bench by his lonesome.

Answer

Depends. If it's a one-off indication, you should introduce it as prose: "It was 9 P.M. on a Sunday in Los Angeles..."

But I assume that's not the case, maybe you're writing a thriller, and you're going to point out the changes in location explicitly multiple times during narration, like X-Files does.

If that's the case, then I would introduce the change of location using italics or a monospaced font, maybe after a scene break introduced by an asterism (three horizontally-centered asterisks).

Los Angeles, CA, USA
Sunday
9 P.M.

Steve got out of the office earlier than usual, and took a cab to meet his friend who was sitting on a park bench by his lonesome.

An alternative is using right-aligned text and small caps, like this page from the Sorrows of Werther, a novel written as a diary.

In any case, if you're going to do this multiple times, no matter the stylistic choice you go with, clearly separate the location and time from the rest of narration.