Update documentation for month constants

stdlib/Dates/docs/src/index.md

@@ -710,6 +710,29 @@ Dates.dayofweek
 Dates.dayofmonth
 Dates.dayofweekofmonth
 Dates.daysofweekinmonth
+Dates.January
+Dates.Jan
+Dates.February
+Dates.Feb
+Dates.March
+Dates.Mar
+Dates.April
+Dates.Apr
+Dates.May
+Dates.June
+Dates.Jun
+Dates.July
+Dates.Jul
+Dates.August
+Dates.Aug
+Dates.September
+Dates.Sep
+Dates.October
+Dates.Oct
+Dates.November
+Dates.Nov
+Dates.December
+Dates.Dec
 Dates.monthname
 Dates.monthabbr
 Dates.daysinmonth

stdlib/Dates/src/query.jl

@@ -226,9 +226,304 @@ function daysofweekinmonth(dt::TimeType)
 end
 
 ### Months
-const January, February, March, April, May, June = 1, 2, 3, 4, 5, 6
-const July, August, September, October, November, December = 7, 8, 9, 10, 11, 12
-const Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
+"""
+    January
+
+The first month of the year.
+
+# Examples
+```jldoctest
+julia> January
+1
+```
+"""
+const January = 1
+
+"""
+    Jan
+
+Abrreviation for [`January`](@ref).
+
+# Examples
+```jldoctest
+julia> Jan
+1
+```
+"""
+const Jan = 1
+
+"""
+    February
+
+The second month of the year.
+
+# Examples
+```jldoctest
+julia> February
+2
+```
+"""
+const February = 2
+
+"""
+    Feb
+
+Abrreviation for [`February`](@ref).
+
+# Examples
+```jldoctest
+julia> Feb
+2
+```
+"""
+const Feb = 2
+
+"""
+    March
+
+The third month of the year.
+
+# Examples
+```jldoctest
+julia> March
+3
+```
+"""
+const March = 3
+
+"""
+    Mar
+
+Abrreviation for [`March`](@ref).
+
+# Examples
+```jldoctest
+julia> Mar
+3
+```
+"""
+const Mar = 3
+
+"""
+    April
+
+The fourth month of the year.
+
+# Examples
+```jldoctest
+julia> April
+4
+```
+"""
+const April = 4
+
+"""
+    Apr
+
+Abrreviation for [`April`](@ref).
+
+# Examples
+```jldoctest
+julia> Apr
+4
+```
+"""
+const Apr = 4
+
+"""
+    May
+
+The fifth month of the year.
+
+# Examples
+```jldoctest
+julia> May
+5
+```
+"""
+const May = 5
+
+"""
+    June
+
+The sixth month of the year.
+
+# Examples
+```jldoctest
+julia> June
+6
+```
+"""
+const June = 6
+
+"""
+    Jun
+
+Abrreviation for [`June`](@ref).
+
+# Examples
+```jldoctest
+julia> Jun
+6
+```
+"""
+const Jun = 6
+
+"""
+    July
+
+The seventh month of the year.
+
+# Examples
+```jldoctest
+julia> July
+7
+```
+"""
+const July = 7
+
+"""
+    Jul
+
+Abrreviation for [`July`](@ref).
+
+# Examples
+```jldoctest
+julia> Jul
+7
+```
+"""
+const Jul = 7
+
+"""
+    August
+
+The eighth month of the year.
+
+# Examples
+```jldoctest
+julia> August
+8
+```
+"""
+const August = 8
+
+"""
+    Aug
+
+Abrreviation for [`August`](@ref).
+
+# Examples
+```jldoctest
+julia> Aug
+8
+```
+"""
+const Aug = 8
+
+"""
+    September
+
+The ninth month of the year.
+
+# Examples
+```jldoctest
+julia> September
+9
+```
+"""
+const September = 9
+
+"""
+    Sep
+
+Abrreviation for [`September`](@ref).
+
+# Examples
+```jldoctest
+julia> Sep
+9
+```
+"""
+const Sep = 9
+
+"""
+    October
+
+The tenth month of the year.
+
+# Examples
+```jldoctest
+julia> October
+10
+```
+"""
+const October = 10
+
+"""
+    Oct
+
+Abrreviation for [`October`](@ref).
+
+# Examples
+```jldoctest
+julia> Oct
+10
+```
+"""
+const Oct = 10
+
+"""
+    November
+
+The eleventh month of the year.
+
+# Examples
+```jldoctest
+julia> November
+11
+```
+"""
+const November = 11
+
+"""
+    Nov
+
+Abrreviation for [`November`](@ref).
+
+# Examples
+```jldoctest
+julia> Nov
+11
+```
+"""
+const Nov= 11
+
+"""
+    December
+
+The last month of the year.
+
+# Examples
+```jldoctest
+julia> December
+12
+```
+"""
+const December = 12
+
+"""
+    Dec
+
+Abrreviation for [`December`](@ref).
+
+# Examples
+```jldoctest
+julia> Dec
+12
+```
+"""
+const Dec = 12
 
 monthname(month::Integer, locale::DateLocale) = locale.months[month]
 monthabbr(month::Integer, locale::DateLocale) = locale.months_abbr[month]