What are the send hour code definitions?
The send hour is relevant when you have send time optimization enabled. The send hour specifies the best time to email a particular contact based on when they generally open emails.
The following table shows the codes used in the field.
| User's time | GMT (when EDT) | GMT (when EST) |
|---|---|---|
| Sunday | ||
| 00:00 | 5 | 6 |
| 01:00 | 6 | 7 |
| 02:00 | 7 | 8 |
| 03:00 | 8 | 9 |
| 04:00 | 9 | 10 |
| 05:00 | 10 | 11 |
| 06:00 | 11 | 12 |
| 07:00 | 12 | 13 |
| 08:00 | 13 | 14 |
| 09:00 | 14 | 15 |
| 10:00 | 15 | 16 |
| 11:00 | 16 | 17 |
| 12:00 | 17 | 18 |
| 13:00 | 18 | 19 |
| 14:00 | 19 | 20 |
| 15:00 | 20 | 21 |
| 16:00 | 21 | 22 |
| 17:00 | 22 | 23 |
| 18:00 | 23 | 24 |
| 19:00 | 24 | 25 |
| 20:00 | 25 | 26 |
| 21:00 | 26 | 27 |
| 22:00 | 27 | 28 |
| 23:00 | 28 | 29 |
| Monday | ||
| 00:00 | 29 | 30 |
| 01:00 | 30 | 31 |
| 02:00 | 31 | 32 |
| 03:00 | 32 | 33 |
| 04:00 | 33 | 34 |
| 05:00 | 34 | 35 |
| 06:00 | 35 | 36 |
| 07:00 | 36 | 37 |
| 08:00 | 37 | 38 |
| 09:00 | 38 | 39 |
| 10:00 | 39 | 40 |
| 11:00 | 40 | 41 |
| 12:00 | 41 | 42 |
| 13:00 | 42 | 43 |
| 14:00 | 43 | 44 |
| 15:00 | 44 | 45 |
| 16:00 | 45 | 46 |
| 17:00 | 46 | 47 |
| 18:00 | 47 | 48 |
| 19:00 | 48 | 49 |
| 20:00 | 49 | 50 |
| 21:00 | 50 | 51 |
| 22:00 | 51 | 52 |
| 23:00 | 52 | 53 |
| Tuesday | ||
| 00:00 | 53 | 54 |
| 01:00 | 54 | 55 |
| 02:00 | 55 | 56 |
| 03:00 | 56 | 57 |
| 04:00 | 57 | 58 |
| 05:00 | 58 | 59 |
| 06:00 | 59 | 60 |
| 07:00 | 60 | 61 |
| 08:00 | 61 | 62 |
| 09:00 | 62 | 63 |
| 10:00 | 63 | 64 |
| 11:00 | 64 | 65 |
| 12:00 | 65 | 66 |
| 13:00 | 66 | 67 |
| 14:00 | 67 | 68 |
| 15:00 | 68 | 69 |
| 16:00 | 69 | 70 |
| 17:00 | 70 | 71 |
| 18:00 | 71 | 72 |
| 19:00 | 72 | 73 |
| 20:00 | 73 | 74 |
| 21:00 | 74 | 75 |
| 22:00 | 75 | 76 |
| 23:00 | 76 | 77 |
| Wednesday | ||
| 00:00 | 77 | 78 |
| 01:00 | 78 | 79 |
| 02:00 | 79 | 80 |
| 03:00 | 80 | 81 |
| 04:00 | 81 | 82 |
| 05:00 | 82 | 83 |
| 06:00 | 83 | 84 |
| 07:00 | 84 | 85 |
| 08:00 | 85 | 86 |
| 09:00 | 86 | 87 |
| 10:00 | 87 | 88 |
| 11:00 | 88 | 89 |
| 12:00 | 89 | 90 |
| 13:00 | 90 | 91 |
| 14:00 | 91 | 92 |
| 15:00 | 92 | 93 |
| 16:00 | 93 | 94 |
| 17:00 | 94 | 95 |
| 18:00 | 95 | 96 |
| 19:00 | 96 | 97 |
| 20:00 | 97 | 98 |
| 21:00 | 98 | 99 |
| 22:00 | 99 | 100 |
| 23:00 | 100 | 101 |
| Thursday | ||
| 00:00 | 101 | 102 |
| 01:00 | 102 | 103 |
| 02:00 | 103 | 104 |
| 03:00 | 104 | 105 |
| 04:00 | 105 | 106 |
| 05:00 | 106 | 107 |
| 06:00 | 107 | 108 |
| 07:00 | 108 | 109 |
| 08:00 | 109 | 110 |
| 09:00 | 110 | 111 |
| 10:00 | 111 | 112 |
| 11:00 | 112 | 113 |
| 12:00 | 113 | 114 |
| 13:00 | 114 | 115 |
| 14:00 | 115 | 116 |
| 15:00 | 116 | 117 |
| 16:00 | 117 | 118 |
| 17:00 | 118 | 119 |
| 18:00 | 119 | 120 |
| 19:00 | 120 | 121 |
| 20:00 | 121 | 122 |
| 21:00 | 122 | 123 |
| 22:00 | 123 | 124 |
| 23:00 | 124 | 125 |
| Friday | ||
| 00:00 | 125 | 126 |
| 01:00 | 126 | 127 |
| 02:00 | 127 | 128 |
| 03:00 | 128 | 129 |
| 04:00 | 129 | 130 |
| 05:00 | 130 | 131 |
| 06:00 | 131 | 132 |
| 07:00 | 132 | 133 |
| 08:00 | 133 | 134 |
| 09:00 | 134 | 135 |
| 10:00 | 135 | 136 |
| 11:00 | 136 | 137 |
| 12:00 | 137 | 138 |
| 13:00 | 138 | 139 |
| 14:00 | 139 | 140 |
| 15:00 | 140 | 141 |
| 16:00 | 141 | 142 |
| 17:00 | 142 | 143 |
| 18:00 | 143 | 144 |
| 19:00 | 144 | 145 |
| 20:00 | 145 | 146 |
| 21:00 | 146 | 147 |
| 22:00 | 147 | 148 |
| 23:00 | 148 | 149 |
| Saturday | ||
| 00:00 | 149 | 150 |
| 01:00 | 150 | 151 |
| 02:00 | 151 | 152 |
| 03:00 | 152 | 153 |
| 04:00 | 153 | 154 |
| 05:00 | 154 | 155 |
| 06:00 | 155 | 156 |
| 07:00 | 156 | 157 |
| 08:00 | 157 | 158 |
| 09:00 | 158 | 159 |
| 10:00 | 159 | 160 |
| 11:00 | 160 | 161 |
| 12:00 | 161 | 162 |
| 13:00 | 162 | 163 |
| 14:00 | 163 | 164 |
| 15:00 | 164 | 165 |
| 16:00 | 165 | 166 |
| 17:00 | 166 | 167 |
| 18:00 | 167 | 168 |
| 19:00 | 168 | 1 |
| 20:00 | 1 | 2 |
| 21:00 | 2 | 3 |
| 22:00 | 3 | 4 |
| 23:00 | 4 | 5 |