blob: bc7bc9f323ff154d802963f272f57dece6756681 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
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
help
RT_LIBC_USING_FULL_TZ_DST controls whether "full timezone and daylight saving time functionality with database" is enabled.
Essentially, it allows RT-Thread to support precise time conversion based on a global timezone database.
Features:
Global timezone adaptation
Automatic daylight saving time (DST) handling
Standard time interface compatibility
Dependencies:
Once enabled (disabled by default), it automatically enables the tz_database package in the RT-Thread software package.
After enabling RT_LIBC_USING_FULL_TZ_DST, the project will automatically import the tz_database code and data files.
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
help
RT_LIBC_USING_LIGHT_TZ_DST is a lightweight timezone and daylight saving time configuration option within the C standard library (libc) component of RT-Thread.
It is a lightweight alternative to RT_LIBC_USING_FULL_TZ_DST (the full timezone solution).
It achieves local timezone conversion using a fixed time offset, rather than relying on a large timezone database.
This option is enabled by default, but only one of RT_LIBC_USING_FULL_TZ_DST can be enabled at a time.
When enabled, three sub-configuration options will be displayed.
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
help
The hour offset of the local time zone relative to UTC (range -12~12, default 8, corresponding to UTC+8 Beijing time).
config RT_LIBC_TZ_DEFAULT_MIN
int "Set the default local timezone (minute)"
range -59 59
default 0
help
Minute offset (range -59~59, default 0)
config RT_LIBC_TZ_DEFAULT_SEC
int "Set the default local timezone (second)"
range -59 59
default 0
help
Second offset (range -59~59, default 0)
endif
endmenu
endmenu
|
