property type: Dict(Enum(‘microseconds’, ‘milliseconds’, ‘seconds’, ‘minsec’, ‘minutes’, ‘hourmin’, ‘hours’, ‘days’, ‘months’, ‘years’), List(String))
User defined formats for displaying datetime values.
The enum values correspond roughly to different “time scales”. The
corresponding value is a list of strftime formats to use for
formatting datetime tick values that fall in in that “time scale”.
By default, only the first format string passed for each time scale
will be used. By default, all leading zeros are stripped away from
the formatted labels. These behaviors cannot be changed as of now.
An example of specifying the same date format over a range of time scales:
DatetimeTickFormatter(
formats=dict(
hours=["%B %Y"],
days=["%B %Y"],
months=["%B %Y"],
years=["%B %Y"],
)
)
This list of supported strftime formats is reproduced below.
Warning
The client library BokehJS uses the timezone library to
format datetimes. The inclusion of the list below is based on the
claim that timezone makes to support “the full compliment
of GNU date format specifiers.” However, this claim has not
been tested exhaustively against this list. If you find formats
that do not function as expected, please submit a github issue,
so that the documentation can be updated appropriately.
- %a
- The abbreviated name of the day of the week according to the
current locale.
- %A
- The full name of the day of the week according to the current
locale.
- %b
- The abbreviated month name according to the current locale.
- %B
- The full month name according to the current locale.
- %c
- The preferred date and time representation for the current
locale.
- %C
- The century number (year/100) as a 2-digit integer.
- %d
- The day of the month as a decimal number (range 01 to 31).
- %D
- Equivalent to %m/%d/%y. (Americans should note that in many
other countries %d/%m/%y is rather common. This means that in
international context this format is ambiguous and should not
be used.)
- %e
- Like %d, the day of the month as a decimal number, but a
leading zero is replaced by a space.
- %f
- Microsecond as a decimal number, zero-padded on the left (range
000000-999999). This is an extension to the set of directives
available to timezone.
- %F
- Equivalent to %Y-%m-%d (the ISO 8601 date format).
- %G
- The ISO 8601 week-based year with century as a decimal number.
The 4-digit year corresponding to the ISO week number (see %V).
This has the same format and value as %Y, except that if the
ISO week number belongs to the previous or next year, that year
is used instead.
- %g
- Like %G, but without century, that is, with a 2-digit year (00-99).
- %h
- Equivalent to %b.
- %H
- The hour as a decimal number using a 24-hour clock (range 00
to 23).
- %I
- The hour as a decimal number using a 12-hour clock (range 01
to 12).
- %j
- The day of the year as a decimal number (range 001 to 366).
- %k
- The hour (24-hour clock) as a decimal number (range 0 to 23).
Single digits are preceded by a blank. (See also %H.)
- %l
- The hour (12-hour clock) as a decimal number (range 1 to 12).
Single digits are preceded by a blank. (See also %I.) (TZ)
- %m
- The month as a decimal number (range 01 to 12).
- %M
- The minute as a decimal number (range 00 to 59).
- %n
- A newline character. Bokeh text does not currently support
newline characters.
- %N
- Nanosecond as a decimal number, zero-padded on the left (range
000000000-999999999). Supports a padding width specifier, i.e.
%3N displays 3 leftmost digits. However, this is only accurate
to the millisecond level of precision due to limitations of
timezone.
- %p
- Either “AM” or “PM” according to the given time value, or the
corresponding strings for the current locale. Noon is treated
as “PM” and midnight as “AM”.
- %P
- Like %p but in lowercase: “am” or “pm” or a corresponding
string for the current locale.
- %r
- The time in a.m. or p.m. notation. In the POSIX locale this
is equivalent to %I:%M:%S %p.
- %R
- The time in 24-hour notation (%H:%M). For a version including
the seconds, see %T below.
- %s
- The number of seconds since the Epoch, 1970-01-01 00:00:00
+0000 (UTC).
- %S
- The second as a decimal number (range 00 to 60). (The range
is up to 60 to allow for occasional leap seconds.)
- %t
- A tab character. Bokeh text does not currently support tab
characters.
- %T
- The time in 24-hour notation (%H:%M:%S).
- %u
- The day of the week as a decimal, range 1 to 7, Monday being 1.
See also %w.
- %U
- The week number of the current year as a decimal number, range
00 to 53, starting with the first Sunday as the first day of
week 01. See also %V and %W.
- %V
- The ISO 8601 week number (see NOTES) of the current year as a
decimal number, range 01 to 53, where week 1 is the first week
that has at least 4 days in the new year. See also %U and %W.
- %w
- The day of the week as a decimal, range 0 to 6, Sunday being 0.
See also %u.
- %W
- The week number of the current year as a decimal number, range
00 to 53, starting with the first Monday as the first day of
week 01.
- %x
- The preferred date representation for the current locale
without the time.
- %X
- The preferred time representation for the current locale
without the date.
- %y
- The year as a decimal number without a century (range 00 to 99).
- %Y
- The year as a decimal number including the century.
- %z
- The +hhmm or -hhmm numeric timezone (that is, the hour and
minute offset from UTC).
- %Z
- The timezone name or abbreviation.
- %%
- A literal ‘%’ character.
