"Songs of Distant Earth" - читать интересную книгу автора (Clarke Arthur C)

CHRONOLOGY

As there has already been a great deal of
unnecessary confusion in this matter, I wish to
make the following points:

1. All ship's records and schedules will remain
on Earth Time--corrected for relativistic
effects--until the end of the voyage. All
clocks and timing systems aboard ship will
continue to run on ET.

2. For convenience, ground crews will use
Thalassan time (TT) when necessary, but will
keep all records in ET with TT in parentheses.

3. To remind you: The duration of the Thalassan
Mean Solar Day is 29.4325 hours ET. There are
313.1561 Thalassan days in the Thalassan
Sidereal Year, which is divided into 11 months
of 28 days. January is omitted from the
calendar, but the five extra days to make up the
total of 313 follow immediately after the last
day (28th) of December. Leap days are
intercalated every six years, but there will be
none during our stay.

4. Since the Thalassan day is 22% longer than
Earth's, and the number of those days in its
year is 14% shorter, the actual length of the
Thalassan year is only about 5% longer than
Earth's. As you are all aware, this has one
practical convenience, in the matter of
birthdays. Chronological age means almost the
same on Thalassa as on Earth. A 21-year-old
Thalassan has lived as long as a 20-year old
Earth-person. The Lassan calendar starts at
First Landing, which was 3109 ET. The current
year is 718TT or 754 Earth years later.

5. Finally--and we can also be thankful for
this--there is only one Time Zone to worry
about on Thalassa.

Sirdar Bey (Capt.)
3864.05.26.20.30 ET
718.00.02.1 5.00 TT


'Who would have thought anything so simple could be so complicated!' laughed Mirissa when she had scanned the printout pinned up on the Terra Nova Bulletin Board. 'I suppose this is one of the famous Beybolts. What sort of man is the captain? I've never had a real chance of talking to him.'