There was a rational system updated to a different rational system, modified by mistakes and adjustments, another rational system or two, and other glitches and such
For example:
A Stardate is a five-digit number followed by a decimal point and one more digit. Example: “46254.7”. The first two digits of the Stardate are “46.” The 4 stands for the 24th Century, the 6 indicates sixth season. The following three digits will progress consecutively during the course of the season from 000 to 999. The digit following the decimal point counts tenths of a day. Stardate 45254.4, therefore, represents the noon hour on the 254th “day” of the fifth season. Because Stardates in the 24th Century are based on a complex mathematical formula, a precise correlation to Earth-based dating systems is not possible."
Back in the ST:TOS days they were 4 digits plus a decimal. IIRC …
From the ancient text The Making of Star Trek* they started with a more or less random number in the 2000’s then just incremented the numbers by a random couple hundred-ish as they wrote the scripts.
But then they broadcast those finished shows during the original season(s) out of order. So from the POV of the audience seeing each episode broadcast for the very first time, the star dates jumped around both increasing and decreasing from show to show.
Which resulted in the need for Rodenberry and crew to invent a Treknobabble reason the “dates” didn’t appear to be “chronological”. So “Subspace mumble mumble”
I assume this means that if someone carefully watched/read all Star Trek everything and noted all the star dates mentioned in those episodes/movies/books/whatever that we could not arrange them in a useful, chronological, way.
It does seem unlikely that someone in space will be able to discern one day from the next without a computer telling them when they are.
ETA: A wrist watch might suffice assuming it is kept wound but even that will drift over time. Or a digital watch as long as the batteries work or solar cells. Their accuracy will drift too.
I’m not real sure what you mean. Here’s some guesses:
If each series episode / movie / written story / fanfic / has a stardate mentioned somewhere in it, you can obviously sort those into stardate order. But what use is that?
No part of at least early ST was meant as a season long “story arc”. Each episode, etc. is freestanding. Any idea that episode X was intended to follow episode Y in a dramatic sense is misguided.
OTOH …
If the Treknobabble was to be believed, stardates had meaning, and there was a way for Star Fleet HQ to make chronological sense of the reports they’re getting from ships all over their part of the galaxy. But that takes more knowledge of ship location, speed, etc., than we have. So even if we knew the (nonexistent fictional) magic formula, we don’t have enough of the inputs to the formula to do the math and get a result that stardate X is before, after, or the same as stardate Y.
OTGH …
At least as to ST:TOS season 1, if you wanted to know the order the scripts were started to be written, sorting the episodes by star date would tell you that much. Which would probably be at least a smidgen dramatically revealing. Because like any fictional “universe” they don’t figure out 100% of everything before they begin. There’s a certain amount of making it up as they go along, and a certain amount of only filling in details of the sketchy universe as the need arises for a particular episode.
So one could observe the TOS universe fleshing out as one watched season 1 in stardate order.
But …
Once they had to invent the Treknobabble reason for broadcasting non-monotonically increasing stardates, I suspect (but do not know) they abandoned any sense of chronologicality at all. So for e.g. seasons 2 & subsequent, the dates no longer corresponded to script-chronological order. Each number was just a random number of the same general magnitude as the others and may be greater or lesser than the script(s) coming just before it or after it.
Dates (of any kind) sort things in chronological order.
Star dates are presumably there to do the same. They mark time so we know Event-A happened before Event-B.
Obviously using Earth-time is useless. It is not the same thing as Vulcan time or Kronos (Qo’noS) time (Klingons). So, some scheme to mark time was invented. In Star Trek it is called Star Dates.
Given that, my original point was if we could line-up the star dates in the fictional universe. It seems we cannot because it was inconsistent and varied over time (which is not surprising at all but would be cool if we could do it).
This time system adjusts for shifts in relative time which occur due to the vessel’s speed and space warp capability… One hour aboard the U.S.S. Enterprise a different times may equal a little as three Earth hours. The Star Date specified in he log entry must be computed against the speed of the vessel, the space warp, and its position within the Galaxy in order to give a meaningful reading.
I’m not quite sure what I meant by that explanation, but a lot of people have indicated it makes sense.
I took that to mean correction for time shifts while traveling at near the speed of light using impulse engines. Who knows what warp does to the clocks, also.
I suspect the real reason was to not set the show at any particular time in the future.
My understanding is no one in Star Trek ever travels over the speed of light. Warp is still sublilght speed but it contracts the distance between A → B. Think of it like a tablecloth that is bunched-up so instead of six feet across it becomes six inches across. That’s what “warp” is. It warps space.