Wiki logos

These are the logos used on the wiki (top left of the page). They change daily at EST 00:00 (UTC -5), and will repeat yearly. The first day is day 0 because PHP, and leap years are accounted for by subtracting 1 day if it's past leap day (so the 240th day of a leap year will use image 238).

Logos

0 (New Years Day)	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 (Groundhog Day)	33	34	35	36	37	38	39
40	41	42	43	44 (Valentine's Day)	45	46	47	48	49
50	51	52	53	54	55	56	57	58	59
60	61	62	63	64	65	66	67	68	69
70	71	72	73	74	75 (Saint Patrick's Day)	76	77	78	79
80	81	82	83	84	85	86	87	88	89
90 (April Fool's Day)	91	92	93	94	95	96	97	98	99
100	101	102	103	104	105	106	107	108	109
110	111	112	113	114	115	116	117	118	119
120	121	122	123	124 (Cinco de Mayo)	125	126	127	128	129
130	131	132	133	134	135	136	137	138	139
140	141	142	143	144	145	146	147	148	149
150	151	152	153	154	155	156	157	158	159
160	161	162	163	164	165	166	167	168	169
170	171	172	173	174	175	176	177	178	179
180	181	182	183	184 (Independence Day)	185	186	187	188	189
190	191	192	193	194	195	196	197	198	199
200	201	202	203	204	205	206	207	208	209
210	211	212	213	214	215	216	217	218	219
220	221	222	223	224	225	226	227	228	229
230	231	232	233	234	235	236	237	238	239
240	241	242	243	244	245	246	247	248	249
250	251	252	253	254	255	256	257	258	259
260	261	262	263	264	265	266	267	268	269
270	271	272	273	274	275	276	277	278	279
280	281	282	283	284	285	286	287	288	289
290	291	292	293	294	295	296	297	298	299
300	301	302	303 (Halloween)	304	305	306	307	308 (Guy Fawkes Night)	309
310	311	312	313	314 (Veterans Day)	315	316	317	318	319
320	321	322	323	324	325	326	327	328	329
330	331	332	333	334	335	336	337	338	339
340	341	342	343	344	345	346	347	348	349
350	351	352	353	354	355	356	357 (Christmas Eve)	358 (Christmas)	359 (Boxing Day)
360	361	362	363	364 (New Years)

Conditional Holidays

Super Bowl	President's Day	Mardi Gras	Leap Day	Easter	Memorial Day	Mothers Day	Fathers Day	Labor Day	Thanksgiving

Code

If you have a wiki and want to implement this, here is the code:

$day = new DateTime("now", new DateTimeZone('America/New_York')); 
if     ($day->format("m-d") == "02-29") { $wgLogo  = "/images/logo/Wiki_logo_Leap_Day.png";}            #Leap Day
elseif ($day->format('m-d') == date("m-d", strtotime("third monday of january"))) { $wgLogo  = "/images/logo/Wiki_logo_MLK.png";}              #MLK Jr Day
elseif ($day->format('m-d') == date("m-d", strtotime("first sunday of february"))) { $wgLogo  = "/images/logo/Wiki_logo_SuperbOwl.png";}       #Super Bowl
elseif ($day->format('m-d') == date("m-d", strtotime("third monday of february"))) { $wgLogo  = "/images/logo/Wiki_logo_Presidents_Day.png";}  #President's Day
elseif ($day->format('m-d') == date("m-d", easter_date() -4060800)) { $wgLogo  = "/images/logo/Wiki_logo_Mardi_Gras.png";}                     #Mardi Gras
elseif ($day->format('m-d') == date("m-d", easter_date())) { $wgLogo  = "/images/logo/Wiki_logo_Easter.png";}                                  #Easter
elseif ($day->format('m-d') == date("m-d", strtotime("last monday of may"))) { $wgLogo  = "/images/logo/Wiki_logo_Memorial_Day.png";}          #Memorial Day
elseif ($day->format('m-d') == date("m-d", strtotime("second sunday of may"))) { $wgLogo  = "/images/logo/Wiki_logo_Mothers_Day.png";}         #Mothers Day
elseif ($day->format('m-d') == date("m-d", strtotime("third sunday of june"))) { $wgLogo  = "/images/logo/Wiki_logo_Fathers_Day.png";}         #Fathers Day
elseif ($day->format('m-d') == date("m-d", strtotime("first monday of september"))) { $wgLogo  = "/images/logo/Wiki_logo_Labor_Day.png";}      #Labor Day
elseif ($day->format('m-d') == date("m-d", strtotime("fourth thursday of november"))) { $wgLogo  = "/images/logo/Wiki_logo_Thanksgiving.png";} #Thanksgiving
elseif ($day->format('L') == "1" and $day->format('m') >= "03") {$day->sub(new DateInterval('P1D'));}   #Leap year check
else {$wgLogo  = "/images/logo/Wiki_logo_".$day->format("z").".png";}

Note: If you want it to only repeat monthly or weekly instead of yearly, change format("z") on the last line to the format character you want.