Created
February 20, 2025 16:12
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convert date to unix timestamp
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| /* Gregorian calender only, fails in Jan and Feb of year 0 */ | |
| int days_since_1970(uint16_t year, uint8_t month, uint8_t day) { | |
| if (month < 3) { month += 12; year--; } | |
| return day + (int)(30.6 * month - 719561.3) + (1461 * year >> 2) - ((year / 100 * 3 + 3) >> 2); | |
| } |
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