When is ALD?

Ada Lovelace Day is held every year on the second Tuesday of October.

People often ask why Ada Lovelace Day is the day that it is. The explanation is rather mundane: the date is arbitrary, chosen in an attempt to make the day maximally convenient for the most number of people. We have tried to avoid major public holidays, school holidays, exam season, and times of the year when people might be hibernating.

Why not just use Ada’s birthday? Well, Ada was born on 10 December and, in the UK where Ada Lovelace Day is based, December is swamped by Christmas parties, making venue hire tricky and putting us in competition with traditionally unmissable employee booze-ups. Given her tragically early death at the age of 36, it would feel inappropriate to celebrate her deathday on 27 November.

If you’re not sure which are the second Tuesdays of October do not worry. To help you plan ahead, here are Ada Lovelace Day’s dates for the next hundred years:

11 October 2016
10 October 2017
9 October 2018
8 October 2019
13 October 2020
12 October 2021
11 October 2022
10 October 2023
8 October 2024
14 October 2025

13 October 2026
12 October 2027
10 October 2028
9 October 2029
8 October 2030
14 October 2031
12 October 2032
11 October 2033
10 October 2034
9 October 2035

14 October 2036
13 October 2037
12 October 2038
11 October 2039
9 October 2040
8 October 2041
14 October 2042
13 October 2043
11 October 2044
10 October 2045

9 October 2046
8 October 2047
13 October 2048
12 October 2049
11 October 2050
10 October 2051
8 October 2052
14 October 2053
13 October 2054
12 October 2055

10 October 2056
9 October 2057
8 October 2058
14 October 2059
12 October 2060
11 October 2061
10 October 2062
9 October 2063
14 October 2064
13 October 2065

12 October 2066
11 October 2067
9 October 2068
8 October 2069
14 October 2070
13 October 2071
11 October 2072
10 October 2073
9 October 2074
8 October 2075

13 October 2076
12 October 2077
11 October 2078
10 October 2079
8 October 2080
14 October 2081
13 October 2082
12 October 2083
10 October 2084
9 October 2085

8 October 2086
14 October 2087
12 October 2088
11 October 2089
10 October 2090
9 October 2091
14 October 2092
13 October 2093
12 October 2094
11 October 2095

9 October 2096
8 October 2097
14 October 2098
13 October 2099
12 October 2100
11 October 2101
10 October 2102
9 October 2103
14 October 2104
13 October 2105

12 October 2106
11 October 2107
9 October 2108
8 October 2109
14 October 2110
13 October 2111
11 October 2112
10 October 2113
9 October 2114
8 October 2115

If you find an error in the above list, please do let us know!