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- Time information occurs in the
CMG InfoBank
as:
- "Date/Time" at the start of each record for correlation with other
datasets.
Standard format is "YYYYDDDHHMMSST" where...
YYYY = year (e.g., 1998 or 2001)
DDD = day of year (e.g., 007 = January 7th,
365 = December 31 [non-leap year])
HH = hour of day in 24hr time
(e.g., 02 = 2am, 15 = 3pm)
MM = minutes
SS = seconds
T = tenths of second
- "Dates" for
Formal Metadata.
Standard format is "YYYYMMDD" where...
YYYY = year (e.g., 1998 or 2001)
MM = month number (e.g., 01 = January)
DD = day of month
- "Dates/Times" for
Formal Metadata.
Standard format is "YYYYMMDDHHMMSSSSZ" where...
YYYY = year (e.g., 1998 or 2001)
MM = month number (e.g., 01 = January)
DD = day of month
HH = hour of day in 24hr time
(e.g., 02 = 2am, 15 = 3pm)
MM = minutes
SSSS = hundreths of seconds
(seconds to two decimal places - without the decimal)
Z = Zulu time
(aka Universal Time, Greenwich Mean Time)
- All values are zero filled (see examples above).
- Times are Coordinated Universal Time (UTC) unless specifically stated otherwise.
- How do UTM, GMT, Zulu, and local times relate...
"There's a time for all things." -- Shakespeare
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