}\r
\r
/**\r
- Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC)\r
+ Calculate Epoch days\r
**/\r
UINTN\r
EFIAPI\r
-EfiTimeToEpoch (\r
+EfiGetEpochDays (\r
IN EFI_TIME *Time\r
)\r
{\r
UINTN m;\r
UINTN JulianDate; // Absolute Julian Date representation of the supplied Time\r
UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY\r
- UINTN EpochSeconds;\r
\r
a = (14 - Time->Month) / 12 ;\r
y = Time->Year + 4800 - a;\r
ASSERT (JulianDate >= EPOCH_JULIAN_DATE);\r
EpochDays = JulianDate - EPOCH_JULIAN_DATE;\r
\r
+ return EpochDays;\r
+}\r
+/**\r
+ Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC)\r
+ **/\r
+UINTN\r
+EFIAPI\r
+EfiTimeToEpoch (\r
+ IN EFI_TIME *Time\r
+ )\r
+{\r
+ UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY\r
+ UINTN EpochSeconds;\r
+\r
+ EpochDays = EfiGetEpochDays (Time);\r
+\r
EpochSeconds = (EpochDays * SEC_PER_DAY) + ((UINTN)Time->Hour * SEC_PER_HOUR) + (Time->Minute * SEC_PER_MIN) + Time->Second;\r
\r
return EpochSeconds;\r
}\r
\r
+/**\r
+ returns Day of the week [0-6] 0=Sunday\r
+ **/\r
+UINTN\r
+EfiTimeToWday (\r
+ IN EFI_TIME *Time\r
+ )\r
+{\r
+ UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY\r
+\r
+ EpochDays = EfiGetEpochDays (Time);\r
+\r
+ // 4=1/1/1970 was a Thursday\r
+\r
+ return (EpochDays + 4) % 7;\r
+}\r
+\r
BOOLEAN\r
EFIAPI\r
IsLeapYear (\r