rt-thread-official/components/libc/compilers/common/Kconfig

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menu "ISO-ANSI C layer"
menu "Timezone and Daylight Saving Time"
config RT_LIBC_USING_FULL_TZ_DST
bool "Enable fully version timezone and daylight saving time with database"
select PKG_USING_TZ_DATABASE # select timezone database software package
default n
config RT_LIBC_USING_LIGHT_TZ_DST
bool "Enable lightweight timezone and daylight saving time"
depends on !RT_LIBC_USING_FULL_TZ_DST
default y
if RT_LIBC_USING_LIGHT_TZ_DST
config RT_LIBC_TZ_DEFAULT_HOUR
int "Set the default local timezone (hour)"
range -12 12
default 8
config RT_LIBC_TZ_DEFAULT_MIN
int "Set the default local timezone (minute)"
range -59 59
default 0
config RT_LIBC_TZ_DEFAULT_SEC
int "Set the default local timezone (second)"
range -59 59
default 0
endif
endmenu
endmenu