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43 lines
941 B
43 lines
941 B
17 years ago
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#ifndef RTC_CONFIG_H
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#define RTC_CONFIG_H
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/**
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* Set this to your local GMT offset
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* Comment to skip GMT offset calculations
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**/
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#define RTC_GMT_OFFSET -5
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/**
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* Select your DST type
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* Comment all to skip DST calculation
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**/
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#define RTC_DST_TYPE 0 /* US */
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//#define RTC_DST_TYPE 1 /* EU */
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// Uncomment this only if you need to check DST prior to 2006
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//#define RTC_CHECK_OLD_DST
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#define RTC_DST_OLD_YEAR 2006
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#define RTC_DOW_1 PSTR("Sun") /* First day of the week */
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#define RTC_DOW_2 PSTR("Mon")
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#define RTC_DOW_3 PSTR("Tue")
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#define RTC_DOW_4 PSTR("Wed")
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#define RTC_DOW_5 PSTR("Thu")
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#define RTC_DOW_6 PSTR("Fri")
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#define RTC_DOW_7 PSTR("Sat")
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/* Wednesday is the first day of Epoch: This probably shouldn't change! */
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#define RTC_DOW_0 RTC_DOW_4
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/**
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* Macros
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**/
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// Start (US/EU), Stop (EU)
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#define DSTCALCULATION1(y) (31-((y * 5 / 4) + 1) % 7)
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// Stop (US)
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#define DSTCALCULATION2(y) (7 - ((1 + y * 5 / 4) % 7))
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#endif
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